The body circulatory system is made of two paths namely pulmonary circulation which is the circuit or path that goes through the lungs where blood is oxygenated, and systemic circulation which is the circuit or path that goes to all the rest of the body to provide it with oxygenated blood.
Pulmonary circulation is the movement of blood from the heart to the lungs then back to heart again. Systemic circulation is the movement of blood from the heart to and through the rest of the body to provide oxygen and nutrients, bringing the deoxygenated blood back to the heart again.
<span>-Be alert to unsafe situations and report them immediately.
-Identify the types and locations of all chemicals or hazards.
-Reading and interpreting chemical labels and hazard signs.
-Use personal protective equipment (P.P.E)
-Locating and and using the M.S.D.S. manual containing all the safety data sheets.</span>
B . It is completely normal . However if you are experiencing extreme pain stop and consult your doctor . Also if you are prone to any kind heart disease let someone know where you are when exercising or better yet let them be at your side at all times .
You should hold a stretch for as long as it does not become too painful for you. Stretch as much as your body needs but not too much because, it could tear up your muscles and tendons. This is the best answer i could give you.
