Exercise Can Make You Feel Fuller !

Have you ever gone out for a run, and by the time you get back you’re crazy for food ? Well, supposedly exercise should make you want to eat more. Recent findings, though, have proved otherwise. They suggest that exercise can actually help slow down overeating. Evidence is also presented that the body’s physiologic response to exercise can help retune the nervous system and make a person feel less hungry. As it explains in the article, hunger is a complex sensation that is determined in part by neurons located in the hypothalamus, which then send signals to the brain telling if were either hungry or not. These neurons get their message from hormones, like insulin and leptin. If the human body becomes resistant to these messengers, people tend to eat more and therefore gain more weight. The key to this signaling seemed to be by interleukin-6(IL-6) and IL-10, which are proteins that are secreted by immune cells. An experiment was conducted in Brazil, where both lean and obese rats ran on a treadmill. After they did this, both types of rats had lower levels of insulin, but the obese rats went back to eating more like the lean rats. Scientists then concluded that exercise had changed the obese rat’s hypothalamic chemistry and boosted their IL-6 .

This relates to science/biological concepts because it has to with the way the human body responds to certain things. In this case, exercise can make the body feel more full, therefore people will be less likely to eat less. This also has to do with psychology, because the brain is the one receiving the signals, of whether we are hungry or not.

In America, may people are overweight. The fact that this new finding suggests that exercise can make a person feel fuller and actually put their hunger on hold, is a vital piece of information for these people. Of course, they are just not going to exercise and not eat, but the fact that exercise will make them feel fuller, then they will be able to consume less food than usual, and hopefully in the future, be able to lose weight.

Source:http://www.scientificamerican.com/article.cfm?id=exercise-decreases-hunger