From what i heard, when carbon monoxide is in a person's blood (smoker or non smoker) it can kill you, it is a sign of poison in your blood. With smokers it is worse because they are smoking something that has a high content of carbon monoxide which can cause heart problems, lung cancer, birth defects, etc. So thats what i think
Rest, Ice, Compress, Elevate
testosterone is C.
Sperm is B.
Cervix is F.
Semen is H.
Testes is I.
Ovaries is E.
Zygote is J.
Uterus is G.
Vagina is D.
Penis is A.
It usually depends on your schedule if your busy and work late I'd say 7-10 hrs but if you are a normal average person 8 hrs will do the trick