There is no exact age at which men emotionally mature, but studies suggest that men do not fully mature until approximately 43 years of age. However, it is important to note that emotional maturity is heavily influenced by a number of psychological factors, including independence, self-esteem, and the ability to handle stress, and these influences happen at vastly different stages of each persons life. While all mens brains fully develop by the age of about 25, their emotional maturity is heavily influenced by psychological factors. Men who grow in maturity more than ten years later than women are not entirely understood, but men remain more immature for a longer time than women do in many cases. It is also important to note that not all men show the same signs of immaturity, and mature men may occasionally exhibit some immature behaviors.