More girls are hitting puberty at eight or earlier. Researchers are exploring the causes, the consequences and what should be done.

The slowdown of physical activity during adolescence is not likely caused by lifestyle and environment but by energy demands placed on the body as it grows and sexually matures, according to a new ...

Physical fitness since childhood is associated with cerebellar grey matter volume in adolescents. According to a recent study conducted at the University of Jyväskylä and the University of Eastern ...

While each experience of adolescence is individually unique, I believe that many changes and challenges are much the same for them all. Usually beginning around ages 9 to 13 years, this eight- to ...

There is a well-known relationship between good physical fitness at a young age and a lower risk of cardiovascular disease later in life. However, when researchers adjusted for familial factors by ...