Teens, Doctor | featured news

Two Texas sisters, ages 12 and 10, run in some of the most grueling races in the nation, but doctors say they are not in danger despite how young they are... The national championship trail run was held on a course both grueling and beautiful, more than 13 miles through the mountains near the Great Salt Lake. Most of it was an unrelenting up-and-down, the path often hugging ridges along a steep plunge, curling through a forest of scrub oak, white pine and red maple. The elevation hit a lung-busting 7,300 feet.

A small but growing number of teens and even younger children who think they were born the wrong sex are getting support from parents and from doctors who give them sex-changing treatments, according to reports in the medical journal Pediatrics....

Girls are being catapulted into adolescence long before their brains are ready for the change.

The American Academy of Pediatrics wants teenagers banned from tanning salons to reduce their risk of skin cancer.

Energy drinks are under-studied, overused and can be dangerous for children and teens, warns a report by doctors who say kids shouldn't use the popular products.