Some things never change. In a class picture, the tall kids are always in the back row and the short kids are always in front. Chances are at least one parent of each of the children stood in the same spot in their own class photos. With height, it always comes down to nature vs. nurture.
"Height is one of the traits that is pretty strongly inherited," said Dr. Andrew Barnes, assistant professor in developmental and behavioral pediatrics at the University of Minnesota.
At what rate that height is achieved depends on the child's sex (girls tend to reach their full growth sooner than boys do) and when they experience growth spurts. The first jump occurs for both genders when the child is between the ages of 1 and 2 years old; the second is typically around age 12 for girls and 14 for boys.
"In boys, growth spurts usually happen around the end of puberty, after they have developed physically in terms of things like the appearance of hair," said Barnes. "Girls tend to grow at the beginning of puberty right up to the time when they get their periods. After that, girls are done growing."
The real issue is not the number of inches they will reach, but the level of comfort kids feel about their height in relation to their friends and classmates, especially during those vulnerable early teenage years.
"That's the time when the shortest boy in the class doesn't love where he is at and neither does the tallest girl," said Barnes.
In fact, kids have been taking stock of those around them since they began school, when they realize what their size is in comparison with others in kindergarten. However, it is around sixth grade when some kids tend to become concerned about their ultimate height, said Barnes.
As a behavioral pediatrician, he has found that kids approach height in different ways. Early-blooming boys often tell him they do not mind the extra attention they receive from peers, while late-blooming boys struggle. Girls who grow and develop early typically do not welcome the attention and can have self- esteem issues as a result.