We get tired after exercise because our muscle fibers get tired very quickly. This is due to the major source of energy for the muscle tissue, called adenosine triphosphate, or ATP. As the muscles make use of this supply of energy, they get tired and fatigue.
<span>True. Hunger just like any other emotion in the
body is a chemical reaction that occurs within the brain. This signals the body that it<span> is
in need of nutrients essential for many organ system functions. There are many
chemical processes within the body that need essential nutrients (eg.
carbohydrates, fats) to perform efficiently. Without food, the body will be
weak and there will be complications within the internal organs. Hunger is a
natural behavior of all living organisms and is essential for survival and
overall a major cause of evolution.</span></span>
Answer:
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Answer:
It has been suggested that women should eat 1200 calories daily while men can eat 1500 calories as the minimum in a day. To maintain weight, women can have 1600-2400 calories daily while men 2000 to 3000 calories a day.
