Although it is less efficient than aerobic respiration, fermentation is an important process often occurring during periods of lengthy and vigorous exercise. How might an athlete know if his body is using this process to produce the energy needed during exercise? Explain your answer.

Which should you do if you decide that the stresses and problems in your life are too much to manage? forget about the stress and hope it will eventually go away. find someone to talk to. try taking a depressant like heroin to you relax. take a hallucinogen, like pcp, to take your mind off things.