A new study suggests that it’s possible that some people are simply genetically predisposed to laziness.
During a six-day period, researchers at the University of Missouri observed rats running wheels in cages. They bred the top runners with each other and vice versa with the rats that ran the least.
After going through 10 generations of rats, results showed the active rats ran 10 times more than the less active rats.
When researchers conducted detailed genetic evaluations, they had identified 36 genes in one part of the brain that may play a role in predisposition to motivation in physical activity.
As noted in the NY Daily News, the research could be important in identifying additional causes for obesity in humans.
The study was published in the American Journal of Physiology: Regulatory, Integrative and Comparative Physiology.