ACTN3: Your ‘muscle type’ gene

When you look at a marathon runner next to a powerlifter, you can’t help but think that there must be a fundamental genetic difference between them. You could be right! At the most elite level, there sometimes is a genetic difference in the type of muscles in a marathon runner and a power athlete. And … Read more

Motivation to exercise? It’s genetic

Why doesn’t everyone like to exercise? A new study in the journal Behavioral Brain Research paints a fascinating picture of why some people are more motivated to exercise. The study looked at the dopaminergic system to see how people’s genetic variants could alter the ‘reinforcing value’ of exercise. The majority of people in the US are … Read more