There are many sites out there that claim that you are able to have a height increase after puberty by taking hormone supplements or performing certain stretches and exercises. Unfortunately, many of these organizations are selling you a lie. Once your bones are finished growing, all of the stretches in the world won't make them start again.
While performing exercises and stretching during puberty can promote good health as well as aid in speeding up your growth, these exercises won't do you much good in regard to your height once you've stopped growing. However, by maintaining good posture—sitting up straight, with your shoulders back, and your head up—you can actually look taller as well as treat your bones well.
While exercising won't give you a height increase after puberty, exercising to increase muscle mass can also help with the illusion that you're taller. It will also help in improving your overall health as well as your confidence levels and self image. Keeping a steady diet full of calcium, protein, amino acids, and other essential nutrients keeps your body health and strong. It also allows your body to renew itself as it replaces old or sick cells with healthy new ones. Treating your body well will also help prevent cases of weakened bones or even bone shrinkage when you grow older.
Some would say there is only one way to have a height increase after puberty. In cases of extreme emergency, there is the option of undergoing surgery to increase your height, but it should be used as an absolute last resort. Bone lengthening surgery consists of the surgeon breaking your bones, inserting metal plates between them, and letting the bone grow to fill the gap between them. As you can imagine, this procedure is extremely painful and the recovery time takes quite awhile.
As an alternative to surgery, you can alter your wardrobe to help yourself look taller. For starters, wearing pants and shirts of the same color, preferably dark hues of black or dark blue, can help. Wearing two toned colors or a solid color on top with patterned pants can actually make you look shorter. Your shoes also affect how tall you look—wearing shoes with heels or height enhancing insoles can help. Wearing big, bulky shoes, such as boots or clogs, is also beneficial.