Laziness may be due to the genes, says the new research.
New research from scientists at the University of North Carolina shows that there's finally a good reason why some people would rather reads comic books and playing the video games all the day.
According to kinesiologist there is a set of least 23 genes that control the drive to be physically active in mice.
Though he's yet to run the same genetic tests on humans, Light foot says he has reason to believe it will hold true for us, too.
Experiments on rats
suggest there could be a genetic predisposition to laziness.
A group of scientists put rats
in cages with running wheels a subtle suggestion for them to start exercising and recorded how much time each spent running during a six-day period. They
bred the top 26 runners with each other, and paired the laziest 26
rats. This selective breeding process was repeated through 10 generations, and
researchers found that rats in the more active line were 10-times more likely
to run than rats in the couch potato line.
Out of more than
17,000 different genes in one part of the brain, we identified 36 genes that
may play a role in predisposition to physical activity motivation
To try to explain why, the researchers compared the two groups'
levels of mitochondria in muscle cell, physical characteristics, and genetic
profile.
Being obese also a major reason
for becoming laziness. This obese also may be a genetical factor, as it is a hereditary.
Exactly how that drive plays out in the body is
still a mystery.
There are two theories, Light foot says: Genes may affect
either the way muscles work
- perhaps causing them to use energy more efficiently and preventing fatigue
- some higher-order biochemical circuit in the brain, such as levels of the neurotransmitters dopamine or serotonin.