Sedentary lifestyle can lead to pulmonary embolism, study finds
Survey of 70,000 nurses shows those who choose sofa over exercise after work more likely to get blood clots on lungs
What a drag … Iceland considers prescription-only cigarettes
Tobacco bill proposes outlawing shop sales, with only doctors allowed to prescribe cigarettes to addicts unable to kick habit
If you’re HIV positive, safe sex isn’t just about condoms
Deborah Jack: With advances in HIV drug therapy, the option of 'treatment as prevention' is a real possibility – though it's not right for everyone
Cervical cancer vaccine a success, says Lancet report
Australian study of injection to protect against HPV virus reveals drop in high-grade abnormalities among under-18s
Choosing to die misses the depth of life
Michael Wenham: Individual 'choice' seemed to trump all in Terry Pratchett's film, which served a cocktail of death disguised as an elixir of life
I was wrong about Trafalgar Square’s meditation flashmob
Naseem Khan: Meditating in public places has always made me uneasy, but this flashmob was half an hour of the purest sanity
UK mother agrees to donate her womb to daughter
Experts divided on whether 'deeply complex' procedure, previously only carried out on animals, is safe for humans
The journey’s over, Tony Blair
Ian Birrell: Tony Blair supports the Arab spring and wants to heal Africa. Laudable aims but breathtaking hypocrisy
Why won’t the pope let women protect themselves from HIV?
Nancy Goldstein: As the UN reviews its HIV/Aids strategy, papal representatives are putting doctrine before African women's health
Why are more women than men affected by the E coli outbreak?
Around three-quarters of 1,800 E coli infections and at least 13 of the 19 who have died have been women. Why?