There's enough wind to power the world many times over, according to a study out Monday, but it would take a massive infrastructure investment to harness it that analysts say is not realistic.
The questions arising from a new probe which says elite athletes who have to travel very long distances are nearly three times likelier to fall ill than when they play at home.
A university study that claimed fracking for gas deep beneath the Earth's surface did not cause water contamination was led by a US professor with financial ties to the gas industry.
Small but significant breakthrough studies on people who have been able to overcome or control HIV were presented Thursday at a major world conference on ways to stem the three-decade-old disease.
Sunbed users run a 20 percent higher risk than non-users of developing skin cancer, according to a report that blamed some 800 melanoma deaths in Europe every year on indoor tanning.
Three decades of safe-sex messages to gays have failed to stem the spread of HIV among a population at greater risk of the AIDS virus than heterosexuals, experts warned in The Lancet on Friday.
North Korea's notoriously harsh secret police consists of vast and sometimes competing agencies that will pose a major challenge to any potential attempts at reform.
Cat Pause proudly describes herself as "fat", can live with euphemisms like "curvy", "chunky" or "chubby", but baulks at what she believes are value-laden labels such as "overweight" or "obese".