Research shows HIV’s ancestor millions of years older than believed

Findings open a new avenue in the quest to understand the origins of HIV

Most slimming products are a con, claims nutrition expert

Researcher says overweight people are being ripped off by bogus health food claims

Female genital mutilation denies sexual pleasure to millions of women

Two doctors in Saudi Arabia want to change cultural attitudes to female genital mutilation by gathering evidence of its links to sexual dysfunction

Overweight women are more likely to miscarry healthy foetuses

Being overweight or obese increases a pregnant woman's chances of losing a baby that has no chromosomal abnormalities

Researchers find no link between IVF and breast cancer

Large study will help to reassure patients concerned that powerful hormone doses might put them at risk

Study fails to find link between fertility treatment and breast cancer

Results from a large study reassure women that having fertility treatment will not increase their risk of developing breast cancer

High cholesterol? Try a polypill

Richard Smith: Rather than asking the NHS to shell out for a patented statin, those who want them should be offered combination pills

‘Assassin cell’ therapy to tackle HIV

Trials to begin for treatment that uses patient's own cells engineered to fight off disease

Tests on cell therapy to fight HIV

New treatment involves engineering patient's own immune system to fight virus more effectively

Postnatal depression ‘in the genes’

Fresh medical research suggests the serious mental illness may be due to nature, not nurture