New experiments reveal a sophisticated posture-control system hidden inside living wood.

A million-person study points to repeated heat injury in the oesophagus.

Children with ADHD showed more erratic pupil responses, a pattern that shifted with medication.

The small trial suggests some of creatine’s muscle benefits may not require structured training.

A small trial hints that redesigning staple foods could make better nutrition easier.

The secret to Bennu’s astonishing fragility may be the dust it does not have.