Steroid use in American football
Encyclopedia
The use of performance enhancing drugs in the sport
Sport
A Sport is all forms of physical activity which, through casual or organised participation, aim to use, maintain or improve physical fitness and provide entertainment to participants. Sport may be competitive, where a winner or winners can be identified by objective means, and may require a degree...

 of American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 has been an ongoing issue since the late 1980s, especially in the National Football League
National Football League
The National Football League is the highest level of professional American football in the United States, and is considered the top professional American football league in the world. It was formed by eleven teams in 1920 as the American Professional Football Association, with the league changing...

 (NFL). The NFL began to test players for steroid use during the 1987 season, and started to issue suspensions to players during the 1989 season. The NFL has issued as many as six random drug test
Drug test
A drug test is a technical analysis of a biological specimen – for example urine, hair, blood, sweat, or oral fluid / saliva – to determine the presence or absence of specified parent drugs or their metabolites...

s to players, with each player receiving at least one drug test per season. One notable incident was when in 1992, when player Lyle Alzado
Lyle Alzado
Lyle Martin Alzado was a professional American football defensive lineman of the National Football League famous for his intense and intimidating style of play....

 died from brain cancer, which he attributed to the use of anabolic steroids, however, Alzado's doctors stated that anabolic steroids did not contribute to his death.

The use of performance enhancing drugs has also been found in other levels of football, including play at the college level
College football
College football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities...

, and even high school play. The most recent figures from the National Collegiate Athletic Association (NCAA) football drug tests show that one percent of all NCAA football players failed drug tests taken at bowl game
Bowl game
In North America, a bowl game is commonly considered to refer to one of a number of post-season college football games. Prior to 2002, bowl game statistics were not included in players' career totals and the games were mostly considered to be exhibition games involving a payout to participating...

s, and three percent have admitted to using steroids overall. In the NCAA, players are subject to random testing with 48 hours notice, and are also randomly tested throughout the annual bowl games. The NCAA will usually take approximately 20 percent of the players on a football team to test on a specific day.

Anabolic steroids and other performance enhancing drugs are also used throughout high school football
High school football
High school football, in North America, refers to the game of football as it is played in the United States and Canada. It ranks among the most popular interscholastic sports in both of these nations....

. Steroid use at this level of play doubled from 1991 to 2003, with results of a survey showed that about 6 percent of players out of the 15,000 surveyed had admitted to using some type of anabolic steroid or performance enhancing drug at one point in their playing time. Other data shows that only 4 percent of high schools have some form of drug testing programs in place for their football teams.

Use in the NFL

The use of performance enhancing drugs and anabolic steroids dates back to the late 1960s in the National Football League (NFL). Denver Broncos
Denver Broncos
The Denver Broncos are a professional American football team based in Denver, Colorado. They are currently members of the West Division of the American Football Conference in the National Football League...

 defensive lineman Lyle Alzado was a more notable early incident on the NFL. In the last years of his life, as he battled against the brain tumor
Brain tumor
A brain tumor is an intracranial solid neoplasm, a tumor within the brain or the central spinal canal.Brain tumors include all tumors inside the cranium or in the central spinal canal...

 that eventually caused his death at the age of 43, Alzado asserted that his steroid abuse directly led to his fatal illness, but his physician stated it could not possibly be true. According to some reports, Alzado was using natural growth hormone, harvested from human corpses, as opposed to synthetic growth hormones. However, shortly before his death, Alzado recounted his steroid abuse in an article in Sports Illustrated
Sports Illustrated
Sports Illustrated is an American sports media company owned by media conglomerate Time Warner. Its self titled magazine has over 3.5 million subscribers and is read by 23 million adults each week, including over 18 million men. It was the first magazine with circulation over one million to win the...

. He said:
Jim Haslett was quoted saying that during the 1980s, half of the players in the league used some type of performance enhancing drug or steroid and all of the defensive lineman used them. One of the players from the Super Bowl
Super Bowl
The Super Bowl is the championship game of the National Football League , the highest level of professional American football in the United States, culminating a season that begins in the late summer of the previous calendar year. The Super Bowl uses Roman numerals to identify each game, rather...

 winning 1979 Pittsburgh Steelers team confessed to using steroids before these statements, Steve Courson
Steve Courson
Stephen Paul "Steve" Courson was an American football guard for the National Football League's Pittsburgh Steelers.- Early years :...

. Courson was another lineman for the Steelers, and admitted to using steroids before his death in 2005. He also blamed a heart condition that he had on steroids. Some of his teammates, such as Jack Ham and Jack Lambert refused to use any kind of performance enhancing drug.

The BALCO
Balco
Balco can refer to:* the Bay Area Laboratory Co-operative - a controversial sports medicine/nutrition centre in Burlingame, California.* Balco balcony systems who develops, designs and manufactures balcony systems and glazing solutions....

 scandal also revealed many users of steroids in the NFL. In 2003, the United States Attorney
United States Attorney
United States Attorneys represent the United States federal government in United States district court and United States court of appeals. There are 93 U.S. Attorneys stationed throughout the United States, Puerto Rico, the U.S. Virgin Islands, Guam, and the Northern Mariana Islands...

 for the Northern District of California
U.S. Attorney for the Northern District of California
The United States Attorney for the Northern District of California is the United States Attorney responsible for representing the federal government in the United States District Court for the Northern District of California....

, Kevin V. Ryan
Kevin V. Ryan
Kevin V. Ryan is the founding principal of The Law Offices of Kevin V. Ryan and an Adjunct Professor at the University of San Francisco School of Law....

, began investigating BALCO. U.S. sprint coach Trevor Graham
Trevor Graham
Trevor Graham is a Jamaican-born former athletics coach, based in the United States. Following the BALCO scandal, the US Olympic Committee barred him indefinitely from all its training sites as a number of the athletes he was training had tested positive for drug abuse.-Athletics career:Graham was...

 had given an anonymous phone call to the U.S. Anti-Doping Agency
United States Anti-Doping Agency
The United States Anti-Doping Agency , is a non-profit organization and the national anti-doping organization for the United States. The organization is charged with managing the anti-doping program for the U.S...

 (USADA) in June 2003 accusing a number of athletes being involved in doping with a steroid that was not detectable at the time. He also named Victor Conte as the source of the steroid. As evidence, Graham delivered a syringe containing traces of a substance nicknamed The Clear
Tetrahydrogestrinone
Tetrahydrogestrinone is an anabolic steroid developed by Patrick Arnold. It has affinity to the androgen receptor and the progesterone receptor, but not to the estrogen receptor...

.

Shortly after, Don Catlin
Don Catlin
Don H. Catlin, M.D. is an anti-doping scientist and one of the founders of modern drug-testing in sport. -Career:Catlin has overseen testing for performance-enhancing drugs at the three most recent Olympics held in the United States since the 1984 Summer Games in Los Angeles, as well as testing...

, MD, the founder and then-director of the UCLA Olympic Analytical Laboratory and now head of the Los Angeles-based nonprofit Anti-Doping Research, succeeded in developing a testing process for tetrahydrogestrinone
Tetrahydrogestrinone
Tetrahydrogestrinone is an anabolic steroid developed by Patrick Arnold. It has affinity to the androgen receptor and the progesterone receptor, but not to the estrogen receptor...

 (THG). Now able to detect the new substance, he tested 550 existing samples from athletes, of which 20 proved to be positive for THG. Later that year, the Chicago Tribune named Catlin Sportsman of the Year.

A number of players from the Oakland Raiders
Oakland Raiders
The Oakland Raiders are a professional American football team based in Oakland, California. They currently play in the Western Division of the American Football Conference in the National Football League...

 were implicated in this scandal, including Bill Romanowski
Bill Romanowski
William Thomas "Bill" Romanowski is a former American football player. He was born in Vernon, Connecticut. A linebacker, he graduated from Rockville High School in 1984, Boston College in 1988 , and then went on to a 16-year career in the NFL, playing for the San Francisco 49ers , Philadelphia...

, Tyrone Wheatley, Barrett Robbins, Chris Cooper
Chris Cooper (American football)
Chris Cooper is an American football defensive lineman who is currently a free agent. He was drafted by the Oakland Raiders in the sixth round of the 2001 NFL Draft...

 and Dana Stubblefield
Dana Stubblefield
Dana William Stubblefield is a former American football defensive tackle in the National Football League. After graduating from Taylor High School in North Bend, Ohio, Stubblefield attended the University of Kansas....

. Recently, many players have confessed to steroid use. One of these players was former Oakland Raiders
Oakland Raiders
The Oakland Raiders are a professional American football team based in Oakland, California. They currently play in the Western Division of the American Football Conference in the National Football League...

 player Bill Romanowski
Bill Romanowski
William Thomas "Bill" Romanowski is a former American football player. He was born in Vernon, Connecticut. A linebacker, he graduated from Rockville High School in 1984, Boston College in 1988 , and then went on to a 16-year career in the NFL, playing for the San Francisco 49ers , Philadelphia...

. Romanowski confessed on the American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 news
News
News is the communication of selected information on current events which is presented by print, broadcast, Internet, or word of mouth to a third party or mass audience.- Etymology :...

 television show 60 Minutes
60 Minutes
60 Minutes is an American television news magazine, which has run on CBS since 1968. The program was created by producer Don Hewitt who set it apart by using a unique style of reporter-centered investigation....

 to using steroids for a two year period beginning in 2001. He stated that these were supplied by former NFL player and former head of BALCO
Balco
Balco can refer to:* the Bay Area Laboratory Co-operative - a controversial sports medicine/nutrition centre in Burlingame, California.* Balco balcony systems who develops, designs and manufactures balcony systems and glazing solutions....

 Victor Conte
Victor Conte
Victor Conte is a former musician with Tower of Power and founder and president of BALCO, a sports nutrition center in California. He served time in prison in 2005 after pleading guilty to conspiracy to distribute steroids and money laundering....

, saying:
A notable recent occurrence happened in 2006. During the season, San Diego Chargers
San Diego Chargers
The San Diego Chargers are a professional American football team based in San Diego, California. they were members of the Western Division of the American Football Conference in the National Football League...

 linebacker
Linebacker
A linebacker is a position in American football that was invented by football coach Fielding H. Yost of the University of Michigan. Linebackers are members of the defensive team, and line up approximately three to five yards behind the line of scrimmage, behind the defensive linemen...

 Shawne Merriman
Shawne Merriman
Shawne DeAndre Merriman is an American football linebacker for the Buffalo Bills of the National Football League. He was drafted 12th overall by the San Diego Chargers in the 2005 NFL Draft. On November 2, 2010, the Chargers waived Merriman...

 failed a drug test and was suspended for four games when his primary "A" sample and backup "B" sample both tested positive for human growth hormone (HGH). Merriman was named NFL Defensive Rookie of the Year in 2005, with 54 tackle
Tackle (football move)
Most forms of football have a move known as a tackle. The primary purposes of tackling is to disposses an opponent of the ball, to stop the player from gaining ground towards goal or to stop them from carrying out what they intend....

s and 10 sacks
Quarterback sack
In American football and Canadian football, a sack occurs when the quarterback is tackled behind the line of scrimmage before he can throw a forward pass, or when the quarterback is tackled behind the line of scrimmage in the "pocket" and the intent of what he was going to do is unclear...

. He also had a total of five passes defended and two forced fumble
Fumble
A fumble in American and Canadian football occurs when a player, who has possession and control of the ball loses it before being downed or scoring. By rule, it is any act other than passing, kicking or successful handing that results in loss of player possession...

s. He was a starting player in the 2005 Pro Bowl
2005 Pro Bowl
The 2005 AFC-NFC Pro Bowl was played February 13, 2005 at Aloha Stadium in Honolulu, Hawaii. The final score was AFC 38 - NFC 27. The most valuable player was Peyton Manning of the Colts. The game holds the record as the latest Pro Bowl played during the calendar year.-Game summary:The game...

, and was a leader on his team in sacks in the 2006 season. The incident led to the passage of a rule that forbids a player who tests positive steroids from being selected to the Pro Bowl in the year in which they tested positive. The rule is commonly referred to as the "Merriman Rule". However, NFL Commissioner Roger Goodell
Roger Goodell
Roger S. Goodell is the Commissioner of the National Football League , having been chosen to succeed the retiring Paul Tagliabue on August 8, 2006. He was chosen over four finalists for the position, winning a close vote on the fifth ballot before being unanimously approved by acclamation of the...

 has tried to distance the policy from being associated with the player, stating that Merriman tested clean on 19 of 20 random tests for performance-enhancing drugs since entering the league.

NFL steroid policy

The NFL banned substances policy has been acclaimed by some and criticized by others, but the policy is the longest running in professional sports, beginning in 1987. In comparison to the policies of Major League Baseball
Major League Baseball
Major League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...

 and the National Hockey League
National Hockey League
The National Hockey League is an unincorporated not-for-profit association which operates a major professional ice hockey league of 30 franchised member clubs, of which 7 are currently located in Canada and 23 in the United States...

, the NFL has long been the most strict. While recently MLB and the NHL decided to permanently ban athletes for a third offense, they have long been resistant to such measures, and random testing is in its infancy. Since the NFL started random, year-round tests and suspending players for banned substances, many more players have been found to be in violation of the policy. By April 2005, 111 NFL players had tested positive for banned substances, and of those 111, the NFL suspended 54.

The NFL began to test players for steroids and other performance-enhancing drugs during the 1987 season. The policy involves all players getting tested many times throughout the regular season, the playoffs, and even during the off-season. The policy was different in the 1990s than it is today, due to heavy criticism from the United States Government. Originally, there were specific guidelines for when the player was caught using a steroid or other performance-enhancing drug. If a player was caught using steroids during training camp
Training camp
A training camp is a place, usually with an army-camp-type environment, where people go to learn skills, usually skills involving physical action rather than book subjects, usually for an armed force or an action sport...

 or some other off-season workout, they were suspended for 30 days for a first-time offense. Typically, this would mean missing four games, three in the pre-season and one in the regular season. Players would then be tested throughout the year for performance-enhancing drugs and steroids. A player who tested positively during a previous test might or might not be included in the next random sampling. A player who tested positive again would be suspended for one year, and a suspension for a third offense was never specified, because it never happened. In later years when many players ignored the policy, NFLPA director Gene Upshaw
Gene Upshaw
Eugene Thurman Upshaw, Jr. was an American football player for the Oakland Raiders of the American Football League and later the NFL, later the executive director of the National Football League Players' Association...

 sent out a letter to all NFL players that stated:

Use in college football

Steroids and performance-enhancing drugs have been reportedly used by many college football players in the NCAA. According to a recent drug test and survey, about one percent of all NCAA football players have tested positive for a performance-enhancing drug or steroid, and about three percent have admitted to using one sometime during their college football career.
Controversy arose in 2005, when former Brigham Young University
Brigham Young University
Brigham Young University is a private university located in Provo, Utah. It is owned and operated by The Church of Jesus Christ of Latter-day Saints , and is the United States' largest religious university and third-largest private university.Approximately 98% of the university's 34,000 students...

 player Jason Scukanec, although never admitting to using steroids himself, stated that steroids were used in many notable Division I programs.

Scukanec, who is currently the host of a sports talk radio show, made these statements:

Portland State University
Portland State University
Portland State University is a public state urban university located in downtown Portland, Oregon, United States. Founded in 1946, it has the largest overall enrollment of any university in the state of Oregon, including undergraduate and graduate students. It is also the only public university in...

 coach Tim Walsh
Tim Walsh (football)
Tim Walsh is a college football coach, currently the head coach of the Cal Poly Mustangs. He was previously the offensive coordinator for the Army Black Knights, and the head coach at Portland State and Sonoma State....

 commented on the situation, declining the remarks:
According to a confidential survey conducted by the NCAA since the 1980s, steroid use has dropped from 9.7 percent in 1989 to 3.0 percent in 2003. During the 2003 season, there were over 7,000 drug tests, with just 77 turning up as positive test results. Scukanec claims that methods were used to get around the drug testing, whether it be avoiding the tests by using the drugs during the off-season, or flushing the drugs out of your system. This was used with a liquid he referred to as the "pink." He stated:

Health issues

Performance-enhancing drugs, most notably anabolic steroid
Anabolic steroid
Anabolic steroids, technically known as anabolic-androgen steroids or colloquially simply as "steroids", are drugs that mimic the effects of testosterone and dihydrotestosterone in the body. They increase protein synthesis within cells, which results in the buildup of cellular tissue ,...

s can cause many health issues. Many American football players have experienced these health issues from using anabolic steroids, which have even resulted in some player's deaths. Most of these issues are dose-dependent, the most common being elevated blood pressure
Blood pressure
Blood pressure is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. When used without further specification, "blood pressure" usually refers to the arterial pressure of the systemic circulation. During each heartbeat, BP varies...

, especially in those with pre-existing hypertension
Hypertension
Hypertension or high blood pressure is a cardiac chronic medical condition in which the systemic arterial blood pressure is elevated. What that means is that the heart is having to work harder than it should to pump the blood around the body. Blood pressure involves two measurements, systolic and...

, and harmful changes in cholesterol
Cholesterol
Cholesterol is a complex isoprenoid. Specifically, it is a waxy steroid of fat that is produced in the liver or intestines. It is used to produce hormones and cell membranes and is transported in the blood plasma of all mammals. It is an essential structural component of mammalian cell membranes...

 levels: some steroids cause an increase in LDL cholesterol
Low density lipoprotein
Low-density lipoprotein is one of the five major groups of lipoproteins, which in order of size, largest to smallest, are chylomicrons, VLDL, IDL, LDL, and HDL, that enable transport of cholesterol within the water-based bloodstream...

 and a decrease in HDL cholesterol
High density lipoprotein
High-density lipoprotein is one of the five major groups of lipoproteins, which, in order of sizes, largest to smallest, are chylomicrons, VLDL, IDL, LDL, and HDL, which enable lipids like cholesterol and triglycerides to be transported within the water-based bloodstream...

. Anabolic steroids such as testosterone also increase the risk of cardiovascular disease
Cardiovascular disease
Heart disease or cardiovascular disease are the class of diseases that involve the heart or blood vessels . While the term technically refers to any disease that affects the cardiovascular system , it is usually used to refer to those related to atherosclerosis...

 or coronary artery disease. Acne
Acne
Acne is a general term used for acneiform eruptions. It is usually used as a synonym for acne vulgaris, but may also refer to:*Acne aestivalis*Acne conglobata*Acne cosmetica*Acne fulminans*Acne keloidalis nuchae*Acne mechanica...

 is fairly common among anabolic steroid users, mostly due to stimulation of the sebaceous gland
Sebaceous gland
The sebaceous glands are microscopic glands in the skin that secrete an oily/waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals...

s by increased testosterone levels. Conversion of testosterone to dihydrotestosterone
Dihydrotestosterone
Dihydrotestosterone is an androgen or male sex hormone. The enzyme 5α-reductase synthesises DHT in the prostate, testes, hair follicles, and adrenal glands...

 (DHT) can accelerate the rate of premature baldness
Baldness
Baldness implies partial or complete lack of hair and can be understood as part of the wider topic of "hair thinning". The degree and pattern of baldness can vary greatly, but its most common cause is male and female pattern baldness, also known as androgenic alopecia, alopecia androgenetica or...

 for those who are genetically predisposed.

Other side effects can include alterations in the structure of the heart
Heart
The heart is a myogenic muscular organ found in all animals with a circulatory system , that is responsible for pumping blood throughout the blood vessels by repeated, rhythmic contractions...

, such as enlargement and thickening of the left ventricle
Left ventricular hypertrophy
Left ventricular hypertrophy is the thickening of the myocardium of the left ventricle of the heart.-Causes:While ventricular hypertrophy occurs naturally as a reaction to aerobic exercise and strength training, it is most frequently referred to as a pathological reaction to cardiovascular...

, which impairs its contraction and relaxation. Possible effects of these alterations in the heart are hypertension, cardiac arrhythmias, congestive heart failure
Congestive heart failure
Heart failure often called congestive heart failure is generally defined as the inability of the heart to supply sufficient blood flow to meet the needs of the body. Heart failure can cause a number of symptoms including shortness of breath, leg swelling, and exercise intolerance. The condition...

, heart attacks
Myocardial infarction
Myocardial infarction or acute myocardial infarction , commonly known as a heart attack, results from the interruption of blood supply to a part of the heart, causing heart cells to die...

, and sudden cardiac death
Sudden Cardiac Death
Sudden cardiac death is natural death from cardiac causes, heralded by abrupt loss of consciousness within one hour of the onset of acute symptoms. Other forms of sudden death may be noncardiac in origin...

. These changes are also seen in non-drug using athletes, but steroid use may accelerate this process. However, both the connection between changes in the structure of the left ventricle and decreased cardiac function, as well as the connection to steroid use have been disputed.

High doses of oral anabolic steroid compounds can cause liver damage
Hepatotoxicity
Hepatotoxicity implies chemical-driven liver damage.The liver plays a central role in transforming and clearing chemicals and is susceptible to the toxicity from these agents. Certain medicinal agents, when taken in overdoses and sometimes even when introduced within therapeutic ranges, may injure...

 as the steroids are metabolized (17α-alkylated) in the digestive system to increase their bioavailability
Bioavailability
In pharmacology, bioavailability is a subcategory of absorption and is used to describe the fraction of an administered dose of unchanged drug that reaches the systemic circulation, one of the principal pharmacokinetic properties of drugs. By definition, when a medication is administered...

 and stability. When high doses of such steroids are used for long periods, the liver damage may be severe and lead to liver cancer
Hepatocellular carcinoma
Hepatocellular carcinoma is the most common type of liver cancer. Most cases of HCC are secondary to either a viral hepatitide infection or cirrhosis .Compared to other cancers, HCC is quite a rare tumor in the United States...

.

There are also gender-specific side effects of anabolic steroids. Development of breast tissue in males, a condition called gynecomastia
Gynecomastia
Gynecomastia or Gynaecomastia, , is the abnormal development of large mammary glands in males resulting in breast enlargement. The term comes from the Greek γυνή gyné meaning "woman" and μαστός mastós meaning "breast"...

 (which is usually caused by high levels of circulating estrogen
Estrogen
Estrogens , oestrogens , or œstrogens, are a group of compounds named for their importance in the estrous cycle of humans and other animals. They are the primary female sex hormones. Natural estrogens are steroid hormones, while some synthetic ones are non-steroidal...

), may arise because of increased conversion of testosterone to estrogen by the enzyme aromatase
Aromatase
Aromatase is an enzyme responsible for a key step in the biosynthesis of estrogens. It is a member of the cytochrome P450 superfamily , which are monooxygenases that catalyze many reactions involved in steroidogenesis. In particular, aromatase is responsible for the aromatization of androgens into...

. Reduced sexual function
Sexual function
Sexual function is a model developed at the Karolinska Institute in Stockholm, Sweden, defining different aspects of the assessment of sexual dysfunction comprises the following components....

 and temporary infertility
Infertility
Infertility primarily refers to the biological inability of a person to contribute to conception. Infertility may also refer to the state of a woman who is unable to carry a pregnancy to full term...

 can also occur in males. Another male-specific side effect which can occur is testicular atrophy
Testicular atrophy
Testicular atrophy is a medical condition in which the male reproductive organs diminish in size and may be accompanied by loss of function. This does not refer to temporary changes, such as those brought on by cold.Some medications can cause testicular atrophy...

, caused by the suppression of natural testosterone levels, which inhibits production of sperm
Spermatogenesis
Spermatogenesis is the process by which male primary germ cells undergo division, and produce a number of cells termed spermatogonia, from which the primary spermatocytes are derived. Each primary spermatocyte divides into two secondary spermatocytes, and each secondary spermatocyte into two...

 (most of the mass of the testes is developing sperm). This side effect is temporary: the size of the testicles usually returns to normal within a few weeks of discontinuing anabolic steroid use as normal production of sperm resumes. Female-specific side effects include increases in body hair
Hirsutism
Hirsutism or frazonism is the excessive hairiness on women in those parts of the body where terminal hair does not normally occur or is minimal - for example, a beard or chest hair. It refers to a male pattern of body hair and it is therefore primarily of cosmetic and psychological concern...

, deepening of the voice, enlarged clitoris, and temporary decreases in menstrual cycle
Menstrual cycle
The menstrual cycle is the scientific term for the physiological changes that can occur in fertile women for the purpose of sexual reproduction. This article focuses on the human menstrual cycle....

s. When taken during pregnancy, anabolic steroids can affect fetal development
Fetal development
Prenatal or antenatal development is the process in which a human embryo or fetus gestates during pregnancy, from fertilization until birth. Often, the terms fetal development, foetal development, or embryology are used in a similar sense.After fertilization the embryogenesis starts...

 by causing the development of male features in the female fetus and female features in the male fetus.

See also

  • Steroid use in baseball
  • Doping (sport)
    Doping (sport)
    The use of performance-enhancing drugs in sport is commonly referred to by the term "doping", particularly by those organizations that regulate competitions. The use of performance enhancing drugs is mostly done to improve athletic performance. This is why many sports ban the use of performance...

  • Don Catlin
    Don Catlin
    Don H. Catlin, M.D. is an anti-doping scientist and one of the founders of modern drug-testing in sport. -Career:Catlin has overseen testing for performance-enhancing drugs at the three most recent Olympics held in the United States since the 1984 Summer Games in Los Angeles, as well as testing...

  • Bay Area Laboratory Co-operative
    Bay Area Laboratory Co-operative
    The Bay Area Laboratory Co-Operative was an American company led by founder and owner Victor Conte, a former bass player for the soul band Tower of Power. In 2003, journalists Lance Williams and Mark Fainaru-Wada investigated the company's role in a drug sports scandal later referred to as the...


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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