Tagged: sympathetic nervous system
Keep Calm And Neuroscience On
It’s every student’s favorite time of the semester: midterm week. As you are freaking out about the upcoming exams that you have, you notice that others around you are relatively calm. You envy them and their ability to cope with stress. But here’s the thing: keeping calm under pressure isn’t a character trait or ability, it’s a skill that you can teach yourself in minutes. You’re probably thinking that that sounds ridiculous, but by following a few simple steps one can easily improve one’s ability to manage stress.
A Different Way to Exercise
Does the gym seem too far away? Do you feel like you don’t have time to exercise? There may be some good news for couch potatoes like ourselves. Studies are showing that watching a sport causes some of the same physiological effects as actually working out . While watching others exercise, heart rate, respiration, skin blood flow, and sweat release all increase as if you were exercising.
Researchers at the University of Western Sydney inserted fine needles into an outer nerve of volunteers who were shown a static image followed by a video of a jogger for 22 minutes. With these needles, the scientists were able to record electrical signals within nerve fibers that innervate blood vessels. These recordings provided measures of the body’s physiological stress response, particularly muscle sympathetic nerve activity.
The study showed that sympathetic nerve activity increased when volunteers watched the jogger. In comparison, observing the static image caused change in activity. The sympathetic nervous system innervates the heart, sweat glands, and blood vessels, and its activity increases during exercise. This study indicates that its activity also increases while watching another person exercise, indicating that there may be some benefit.