Whether you’re a senior in high school or a senior-living resident, you’ve likely heard of Viagra (sildenafil) — the original ...

Like other prescription medicines, Viagra and its generic form, sildenafil, work best when you take them under the right ...

Although caffeine is generally safe in low-to-moderate amounts, high levels of consumption may lead to unpleasant and even dangerous side effects. Coffee and tea are healthy beverages. However ...

As assigned males get older, their levels of testosterone gradually decline by 10% per decade after age 30. Through the use of DHEA supplements, many individuals aim to counter the effects of ...

3 Health Services Research Unit, University of Aberdeen, Aberdeen, UK Correspondence to: Professor M Eccles, Professor of Clinical Effectiveness, Centre for Health Services Research, 21 Claremont ...