Neptune's blue color is the result of a gas called methane in its atmosphere. Like the other gas planets, Neptune has rapid winds trapped in bands of latitude and large storms. Neptune's winds are the fastest in the solar system, reaching 2000 km /hour!
Traction Alopecia. Traction Alopecia is another common cause of thinning or shedding hair among teenagers, and it occurs when an unnatural amount of tension is applied to the hair for a prolonged period of time. The good news: Traction Alopecia is one of the few causes of hair loss in teens that is behavioral.
This doesn't always happen at a proportional rate. Teens can grow as much as 10 inches (25 cm.) during these years. Increase in muscle, fat and bone causes rapid weight gain, and what is important when calculating appropriate height and weight is the proportion of the body composition. 10 Fitness Facts Women Should Know.