Steroid hormones exert their effect by

People with a BMI greater than 30 may have elevated levels of estrogen in the body due to greater body fat content which may also contribute to infertility. This is known as estrogen dominance. Obesity in men lowers testosterone levels. Chronic low levels of testosterone affect how the testis function, which causes all hormones produced by them, to be out of balance. Research shows elevated levels of estrogen in obese men. The sperm of obese men are often abnormal, this increases the risk for miscarriage and chromosomal defects in a developing embryo. Obese men also often have sexual dysfunction.

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The gains made by athletes in uncontrolled observations have been much more impressive. Weight gains of thirty or forty pounds, coupled with thirty percent increases in strength, are not unusual. Such case studies lack credibility because of the absence of scientific controls. However, it would be foolish to completely disregard such observations because the "subjects" have been highly trained and motivated see the articles on pharmacology of sport and sports medicine in the countries of the former Soviet Union for more information on anabolic steroids.

About the Speaker
Amy Ladd, MD, is a professor of orthopaedic surgery (hand surgery) and, by courtesy, of medicine (immunology & rheumatology) and of surgery at Stanford University Medical Center. She is chief of the Robert A. Chase Hand Center at Stanford and chief of the Pediatric Hand and Upper Limb Clinic at Lucile Packard Children’s Hospital. A renowned hand surgeon, Ladd also studies and treats congenital hand anomalies in children. Ladd received her MD from State University of New York and did her orthopaedic residency at the University of Rochester School of Medicine. She completed a hand fellowship at Brigham and Women’s Hospital and Boston Children’s Hospital.

Steroid hormones exert their effect by

steroid hormones exert their effect by

About the Speaker
Amy Ladd, MD, is a professor of orthopaedic surgery (hand surgery) and, by courtesy, of medicine (immunology & rheumatology) and of surgery at Stanford University Medical Center. She is chief of the Robert A. Chase Hand Center at Stanford and chief of the Pediatric Hand and Upper Limb Clinic at Lucile Packard Children’s Hospital. A renowned hand surgeon, Ladd also studies and treats congenital hand anomalies in children. Ladd received her MD from State University of New York and did her orthopaedic residency at the University of Rochester School of Medicine. She completed a hand fellowship at Brigham and Women’s Hospital and Boston Children’s Hospital.

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