Human height spurts and slumps all through one’s life
From infancy, when average length is 20 inches, to age 2 there is initially rapid growth, then slowing, with about 14 inches in height added. From age 2 to puberty there is slow, steady growth at about 2 inches per year. As one enters puberty, a growth spurt of 3 to 5 inches in a year is common. By ages 40 to 50, height actually may begin slowly to decline, even in healthy adults.
Found this post helpful? Buy me a beer!
