Dr Amir Khan has issued an important piece of advice for anyone who has ‘clicking knees’ as he reveals what medical condition ...

New options for testing and treating some of the most common sexually transmitted diseases are becoming available.

Famed biohacker Bryan Johnson and his Blueprint team devised this measure of harmful plastic particles in your blood.

The Navy has a new fitness test for active-duty “combat arms personnel,” including members of Naval Special Warfare and Naval ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Colleen Hagerty Colleen Hagerty is a writer focused on emergency preparedness.