Laziness

There may be genetic reasons that cause people to be lazy and not exercise.

Although we all know there’s overwhelming health benefits physical activity, many people still choose to not exercise.
-Staying fit helps prevent numerous major diseases and health problems.
-In the study, some of the sedentary mice devised ingenious ways to avoid activity.

Some people have “activity-prone” genes, while others don’t.
-Lightfoot identified 20 different genomic locations that work in tandom to influence activity levels.
-If mice have a gene, humans probably also have it.
-In the study, mice who’s parents were active, were much more likely to also be active.

The “active” genes could either affect how the muscles work or the amounts of neurotransmitters in the brain, but it’s probably the neurotransmitters being affected.
-A study suggests that there is no difference in the function of the muscle of the active and not active mice.
-The study hasn’t been published yet so it can’t rule out the hypothesis that the active genes directly affect the muscles efficiency.
-The neurotransmitters dopamine and serotonin play important roles in several human drives and behaviors, so it would be a reasonable hypothesis that they are what the activity gene directly affect.