Salt not as damaging to health as previously thought, says study

New research reignites a row with scientists who want to reduce salt intake to near zero

How ablation destroys cancer to prolong lives

Ablation, a minimally invasive tumour-destroying technique using focused radiation, is proving effective. So why is it not more widely known?

Eleven babies die after Dutch women given Viagra-like drug in trial

Research halted as 10 to 15 other participants wait to see if their children affected

Nightshifts disrupt rhythm between brain and gut, study shows

Blood tests on participants show profound impact work pattern has on hormones

Seven ways IVF changed the world – from Louise Brown to stem-cell research

The first ‘test-tube’ baby turns 40 this month, but the impact of in vitro fertilisation extends far beyond solutions to fertility problems

Want stronger, healthier sperm? Eat your nuts

Snacking on nuts was shown to increase the number and quality of the sperm men produced

From apps to artificial wombs: the smart tech transforming NHS care

Smart pills can keep track of a patient’s correct dose – and could even monitor vital signs

Work stress raises risk of premature death in vulnerable men – study

Men with diabetes or heart disease facing ‘job strain’ have 68% higher risk of early death

Michael Pollan: ‘I was a very reluctant psychonaut’

The bestselling author and activist has been exploring the use of psychedelic drugs in medical research for his book How to Change Your Mind. And yes, he had to try them for himself

Missing the fizz: my long battle to understand the mysteries of ME

Is chronic fatigue syndrome physiological or psychological? The medical world remains divided – leaving millions unsure about the efficacy of the treatment they receive