Adults generally do not grow any taller because the epiphyses have largely closed by this time and there is no single way to grow taller. Growth refers to the growth of the long bones, and depends mainly on whether the epiphyses are closed or not. If the epiphyses are already closed, then there is basically no room for growth and the bones can only develop horizontally. Generally speaking, men’s epiphyses close around the age of 21-22, while women’s epiphyses close around the age of 20. If all the epiphyses close, it is very difficult to grow taller, unless osteotomies are performed. But this kind of surgery is only applicable to patients with bone defects or limb deformities, ordinary adults can not take this way to increase height, so once an adult, it is basically very difficult to realize the purpose of growing taller through normal ways. If you want to grow taller, then you have to work hard during puberty to promote the change of height by adjusting your life and dietary habits.