Exercise and Its Benefit

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Exercise and Its Benefits
Today most people do not exercise during work or rest hours. There are not many jobs requiring intense physical activity. With all the technology advancing our lives tend to became more and more sedentary. Instead of being physically active, people usually watch TV or keep hours in front of a computer in their free time. Instead of walking, people use automobiles or public transportation. Instead of use stairs people get the elevator. It is very important to put in people minds that not only a pre set work out can be good but the amount of activities you do during all day. Exercise is very important and is beneficial both physically and mentally. Sometimes people do not realize how good exercising is for their life, how huge are the number of benefits exercise can provide. Also people tend to believe that exercise is only good for keep the body in shape while it can give you an incredible mind pump when talking about feeling good and fighting depression. When you exercise, you feel better about yourself because you are fit or you are getting fit and you feel that you have accomplished something that was hard to strive for. The benefits of physical activity are that it gives you more energy, it helps you in dealing with stress, it improves self-image, and it increases resistance of tiredness. There are also some body chemical substances related on exercising and feeling good which I am going to discuss in this paper. In a study of rats at the University of Wisconsin, they had one group of rats exercise on an exercise wheel, and another group that didn't exercise. When the rats were exposed to stress, the exercising rats released measurably less norepinephrine into their brains. Norepinephrine is a hormone that produces adrenaline. In other words, the exercising rats had a healthier response to the stressful event. Also a study at Stanford University with healthy but sedentary adults who had trouble sleeping and/or sleeping an average...
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