Answer:
FALSE!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
Hope I Helped! :)
Answer: to defend itself
Explanation:
This natural reaction prepares you to either flee or protect yourself in dangerous situations. Your heart rate increases, your adrenal gland releases cortisol (a stress hormone), and you receive a boost of adrenaline, which increases energy. This fight-or-flight response occurs in the alarm reaction stage.
The heart functions as a <span>muscle that helps to pump oxygen around the body.
Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧ </span>
During weight training, you should exhale during he concentric phase or when you're doing the hardest work.