Variable: May start by 10 yo, rarely after 18. Some may have 1or 2 major growth spurts while others may have a more gradual increase in height with several smaller growth spurts.
Answered 10/3/2016
5.5k views
Variable: All depends on a person's genetics. However they usually stop in women around age 17-19 and boys 19-21.
Answered 3/27/2017
5.5k views
7 doctors weighed in across 4 answers
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