Most people start to face new issues at the ages of 11-13 some may gain this at older ages, but it typically starts around that time, some causes of this are: Puberty;School; Problems at home; etc.
I would say dancing,because its one of the exercise that you can do.
hope this helps..
Health insurance doesn’t mean that you must have the Cadillac of plans to cover every health need. Such plans are very expensive. There are other types of plans, such as HMOs, that provide less costly coverage.