In order to understand why these methods work, it's good to know how our bodies grow as we age. When we are infants, many of our bones still consist of cartilage. As we grow older, these bones shift and fuse to meld into bigger, solid bones. This is why we have more bones when we're babies than when we're adults. When we are teenagers, growth plates attached to the ends of our longer bones start to lengthen slowly, which is why we tend to have growth spurts at that age.
With that in mind, please don't believe any organization that claims you can lengthen your bones by doing certain stretches or by taking supplements. Once your bones are done growing, that's it. No amount of exercise, vitamins, or hormones will make them grow again.
In extreme situations, surgery is an option, but it is risky, painful, and very, very expensive. Not only is it difficult to find doctors who are qualified to perform this surgery, but the complications that arise after the surgery simply aren't worth the trouble. In undergoing this procedure, you have a high risk of your bones breaking, paralysis, nerve damage, and even death.
However, there are several height increasing methods you can try that are extremely beneficial. Exercise, for example, is useful no matter how old you are. Not only will regular exercise increase and enhance your growth spurts when you're young, but keeping good exercising habits when you're older will keep your bones stronger. It will also keep you slim and strong, which increases the illusion of extra height.
Your diet is also very important. Depriving your body of much-needed calcium, protein, calories, and amino acids when you're young can actually stunt your growth! It also results in weakened bones and even height shrinkage when you're older. By eating healthy, you can keep your body strong and active even into your later years.