D. remaining well -hydrated while exercising is best, when you perspire from exercise you have to replace fluids or you will de-hydrate which is not safe.
Blocked, and the heart can't get oxygen.
A. Ethics
I'm 95% positive on this one, I hope I helped!
Yes, this is the correct answer! Acupuncture IS the use of needles at specific points of the body to treat or prevent medical problems.
