Hands and feet are never supposed to be blue. How could a patient be so healthy otherwise, despite such a serious symptom?

Introducing the Space & Beyond Box from our sister publication, Astronomy Magazine. It's a quarterly adventure curated with an astronomy-themed collection in every box.

Be the first to know when ordering goes live: http://bit.ly/2MEgoa8

Tinnitus is a lot more complicated than just a ringing in the ears. It is more like a ringing across the brain.

The link between positivity and longevity:

A deep breath can have a potent effect.