abnormally thin wrists

Hello, I'm a 20 year old Japanese male.  I have abnormally thin wrists and am interested in knowing whether my thin wrists were caused by the excessive exercising and dieting I did from when I was 13 until I was 15 years old.  During that time period I grew maybe 2 inches and lost 30 pounds.  I accomplish this by skipping breakfast and eating salad for lunch.  I have wrists which are thinner than both my father and my mother.  In fact, I have never seen wrists as thin as mine on another male and rarely on a female.  I guess my question is, Is there any way of finding out how my dieting affected my growth, wrists and everything else?
thank you

[Kevin Kennedy, Ph.D.]

Dear Mr. Nomura,

There really is no way to retrospectively determime the physiological effects of your dieting and exercise during your early teens. However, it is reasonable to assert that, for most males, the ages when you were dieting and exercising are prime times for growth, and inadequate nitrition during those years can certainly inhinit normal physical development.

For now, though, it might be best to regard what happened bck then as "water over the dam" - i.e., it can't be changed, you can only learn from it. Maintaining proper nutrition, accompanied by a program of reasonable (not excessive) exercise is a formula for sound health and development. Hopefully you have stopped restrictive dieting and excessive exercising.