E3N French Cohort Study

This study looked at 100,000 women and compared the risk of breast cancer between those using estrogen (mostly estradiol) and progestogens in the form of progestins (synthetic progesterone) and of estrogen with natural progesterone.  The results showed a lower risk of breast cancers in those that used natural progesterone as compared to those using synthetic…

Testosterone and Prostate Cancer

Many men hear the concern about testosterone and prostate cancer.  That conclusion comes from a study conducted in 1941 by Doctor Charles Huggins.  One Harvard doctor, Abraham Morgentaler, now Associate Professor of Urology at Harvard Medical School  has spent the last 20 years putting this theory to the test.  When he went back to the original…

Estradiol Levels and Aging Men

This article speaks to estradiol levels in men.  There were 501 men in this study, all of which had CHF (chronic heart failure).  The results were reported in JAMA (Journal of the American Medical Association).  The study found that levels between 20-30 pg/ml seemed to be best.  PDF

Androgen Insufficiency in Women

A 2006 study by Glenn Braunstein and Cedars-Sinai speaks to a disorder called Hypo-Sexual-Desire-Disorder or HSDD; the most common form of female sexual dysfunction.  The study reports on treatment using physiologic to supraphysiologic levels of testosterone for patients who suffer with this diagnosis. PDF