What kind of exercise you should be doing

According to research, at least 13 genes are involved in the three main components of fitness: cardiovascular fitness, muscular strength, and anaerobic power. One example is your genetic proclivity for fast-twitch versus slow-twitch muscle fibers, which influences whether you excel at sprinting and muscle building or endurance sports.

Apparently, your genetics can influence up to 50% of your ability to succeed in one type of training or another, implying that the remaining 50% can be influenced by your diet and training approach. So getting a DNA test could help you focus your workout on the training that will be most effective for you.