Being Sedentary May Be Genetic
A study conducted by The American Physiological Society has raised interesting questions about why some people seem to be born to move while others prefer to hibernate like sleeping bears. Apparently, being a couch potato may be hard-wired into the brain, according to the researchers’ findings, which were published on the society’s website (www.the-aps.org/press/journal.06/19.htm) last summer.
The study found that the brains of rats bred to be lean are more sensitive to a chemical produced in the brain called orexin A, which stimulates appetite and spontaneous physical motion, such as fidgeting and other unconscious movements. Compared to rats bred to be obese, the lean rats had a far greater number of orexin receptors in their brains. According to the study authors, “The results point to a biological basis for being a couch potato.”
These findings suggest that minor daily movements, like fidgeting, actually help burn calories and control weight. The study’s conclusions could lead to the development of new drugs to stimulate minor activity in people trying to lose or maintain weight, the researchers went on to say.
For the latest research, statistics, sample classes, and more, "Like" IDEA on Facebook here.
© 2007 by IDEA Health & Fitness Inc. All rights reserved. Reproduction without permission is strictly prohibited.
IDEA Newsletter Sign-up
|Extreme Interval Training
In this course you'll learn goal-focused intervals and over 50 dynamic exercises and drills to create extensive and intensive training formats.
|Cut to the Core
This is a raw, unedited video filmed live at the 2009 IDEA World Fitness Convention™. Cut to the Core is packed full of core-focused exercises that aim to improve the way you look, feel and live.
|September 2011 IDEA Fitness Journal Quiz 4: Plyometric Training
This continuing education quiz is an in-depth look at plyometric training. Plyometric exercises—jumping, bounding, hopping, arm pushing, and catching and throwing weighted objects such as machine balls—are movements that involve rapid eccentric and concentric muscle actions.