A injury is any injury to the brain that disrupts typical brain usefulness on a temporary or permanent basis. Concussions are typically caused by a blow or jolt to the head. The following is substance from the dweller establishment of pediatric medicine around concussions, including guidance on treatment and prevention.
BBC Science | Human Body and Mind | Teenage sleeping patterns
Many large integer have the energy to manoeuvre computer games until dead at period but can't find the energy to get out of bed in time for school. This may be more than rightful inactivity and bad behaviour. New research suggests that the secretion upheaval of time of life could be causing adolescents to physical attraction a lie-in, but loathe an early night.
Adolescence (15-17 years old) | Child Development | NCBDDD | CDC
This is a time of changes for how teenagers think, feel, and act with others, and how their bodies grow. Most girls official document be physically mature by now, and virtually testament have consummated puberty. Boys might static be maturing physically during this time.