End the gay blood ban

Peter Tatchell: Any man who has had sex with a man, even once, even 50 years ago, and even if they test HIV-negative, cannot give blood

Beware the iPod zombie cyclist

Edmund King: Plugged in to MP3 players, this new breed among urban cyclists is not just a nuisance, but a menace – mainly to themselves

Research in California shows children who are too clean could find their skin's ability to heal impaired

Horticulturalists, doctors and lawyers among instructors after Michigan legalises drug as a medicine

Sarah Wildman: A panel's recommendation that American women need fewer mammograms would mean more deaths from breast cancer

X-rays of mummies reveal signs of atherosclerosis, suggesting there may be more to the disease than bad diet and smoking

Women who took the drug during a trial reported more satisfying sexual encounters and a higher libido

Open thread: More and more politicians have taken to jogging. But is this about public image or fitness?

Joseph Galliano: New sex education rules will help all children feel comfortable with their sexuality – except those in faith schools