Researchers are looking into a simple, promising way to boost the immune system. But the price is steep.
Most transgender people know their gender identity as children. So how do pediatricians help them become healthy adults?
A timeline of pivotal testosterone therapy events through history.
Out of favor for decades, testosterone replacement therapy is back–and so is the debate about a possible link to prostate cancer.
Hormone therapy after menopause may prevent heart attacks and caner—or cause them. New research could show who benefits.
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