Hello, i would like to know, for my age, how can i grow taller, since the year 2010 i have grown more than 2 inches and a half but in the same year i grew 2 inches and last year i havent grown much, and this year i have seen not much results. Please help me, i need a full analysis on what i need to increase my height. And also one more thing, can stretching and vitamin supplements contribute to my growth?