14 years old through physical exercise can still grow taller again, but exercise abs on height growth is not very significant, generally do pull-ups, jumping movements, the growth of height is the most stimulating. It is recommended that you can usually play basketball or practice standing long jump, run more, do pull-ups, do these physical activities, 14 years old or can grow taller, because the normal development age of people to 18 years old, some can also be extended to 19 years old, 20 years old. During this period through physical exercise or can grow taller, simply exercise the abdominal muscles on height is not significant.