These body type classifications have their roots in discredited pseudoscience—but they're still common shorthand at the gym.

TEEN Mom viewers are clearly keen on Tyler Baltierra’s increasingly gym-honed physique. The 33-year-old posted a video on Instagram of him looking buff, in black sweatpants and black muscle ...

Many people, both men and women, have ectomorph body types and have a hard time gaining weight and muscle. Ectomorphs need to consume a higher number of calories to gain weight to compensate for ...

QUESTION: I am diligent about performing abdominal exercises every day. Despite this, my stomach is never flat, and I’ve become very discouraged. Please help.

They found that endomorphs had significantly greater asymmetry in arm fat than mesomorphs and ectomorphs ... also had the smallest variations in arm muscle mass compared to the other two body ...

Those with a rounder body shape tend to carry more body fat, while ectomorphs may find it difficult to gain weight and/or put on muscle. It should be noted that many of us are a combination of ...

Ever notice how some friends struggle to gain muscle no matter how much they lift, while others seem to bulk up just by ...

This natural process, medically termed sarcopenia, involves the gradual deterioration of muscle tissue and strength. Beginning around age 30, most people lose 3-5% of their muscle mass each decade ...

They could help patients grow new heart muscle and even recover. Jonas Frisén and Olaf Bergmann, researchers at the Karolinska Institute in Sweden , led the carbon-14 dating part of the study.