Sometimes your body can do weird things like twitching eyelids or nervous sweating which feel random. Dr Khan explains the ...

Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can ...

Goosebumps arise when tiny muscles around hair follicles contract, causing the hair to stand on end. Learn what triggers them and when they may be cause for concern.

When anxiety spikes, the nervous system can shift into fight-or-flight in seconds, but it can also be guided back toward ...