Anti-Aging: The Law of Requisite Usefulness

Fighting the aging process does not necessarily mean devising drugs or biomedical procedures such as stem cells or tissue engineering. In fact, these procedures are unlikely to work. Instead, it […]


Global warming cynics unmoved by extreme weather

What will it take to convince skeptics of global warming that the phenomenon is real? Surely, many scientists believe, enough droughts, floods and heat waves will begin to change minds. […]


Stroke damage mechanism identified

Researchers have discovered a mechanism linked to the brain damage often suffered by stroke victims–and are now searching for drugs to block it. Strokes happen when the blood supply to […]