Zynev stress, a change occurs in

[manooann ann]

Zynev stress, a change occurs in your brain chemistry that favors quick thinking over rationality. This same response dampens what you feel within your body. Although this fight or flight mechanism served our ancestors well when they were living in the wild, today it can cause serious health disorders and disease.

http://ultimatemuscleblackeditionrev.com/zynev-side-effects/