Other contributors have said "What are the positive and negative effects of exercise on the cardiovascular system?" is the same question as "What negative effect does exercise have on the cardiovascular system?" If you believe that these are not asking the same thing and should be answered differently, click here
What negative effect does exercise have on the cardiovascular system?
Exercise uses up alot of energy which the cells derive from oxidizing glucose.
Both glucose and oxygen have to be delivered by the blood, this means that the heart has to work harder to pump more...
In general: The heart muscle and the general cardiovascular system become more efficient. The exercise also helps the body to build muscle and burn fat. Unless you have arthritis or some other...
Muscle soreness is normally experienced around 24-48 hours of working out. In general though, exercise is excellent for maintenance of long-term health and strength.
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