The race to return humans to the moon and eventually send astronauts to Mars has forced scientists to confront a difficult reality. Space is dangerous, isolated and unforgiving.

Microgravity makes it tricky to do simple tasks like eating, using the toilet and showering, so it is no wonder that performing CPR on someone whose heart stops beating in space is an extremely ...

The American Heart Association's October 2025 updates to CPR and Emergency Cardiovascular Care guidelines went into effect March 1, 2026, bringing tighter compression metrics, updated team dynamics, ...