Adult males are individuals who have reached maturity in the male sex. Typically, this stage is recognized in humans around the age of 18, when they attain full physical and reproductive development. Adult males often exhibit secondary sexual characteristics, such as increased muscle mass and facial hair, which are influenced by hormones like testosterone. In many societies, adult males may take on various roles, including those of a provider, protector, and leader. They can participate in diverse activities, from employment to parenting, and often engage in social, cultural, and recreational pursuits that reflect their interests and values.