Scientists Discover Your Fight or Flight Response Comes from Your Bones

Science just proved that the phrase “I feel it in my bones” is a real thing.

Apparently, your skeleton is involved in your fight-or-flight response. The moment your brain senses danger it signals your bones and within minutes your skeleton releases a hormone called osteocalcin that rapidly primes your muscles to fight or run.

The strangest part is that osteocalcin comes entirely from bone cells but has almost no effect on bone density itself.

Read more: Moser SC, van der Eerden BCJ. Osteoca