Sperm count among men in North America, Europe, Australia and New Zealand has halved in 40 years, according to research warning of fertility risk, though outside experts urged caution about the results.
Children whose sexual characteristics don't neatly align with the norm have for decades faced surgery to rearrange their anatomy to resemble that of more typical boys and girls -- long before they were old enough to have a say in the decision.
There are no proven ways to stave off Alzheimer's, but a new report raises the prospect that avoiding nine key risks starting in childhood just might delay or even prevent about a third of dementia cases around the world.
The biopsy shows cancer, so you have to act fast, right? Not necessarily, if it's a prostate tumour. Men increasingly have choices if their cancer is found at an early stage, as most cases in the U.S. are.
People who develop shingles -- a re-activation of the chicken pox virus which commonly affects older people -- may face a ballooning risk of heart attack or stroke, South Korean researchers said Monday.