Final answer:
During early adulthood, individuals are at their peak of sexual activity due to hormonal changes that occur during puberty. These hormonal changes lead to increased awareness of sexuality and desire for intimacy and sexual relationships.
Step-by-step explanation:
During early adulthood, individuals are at their peak of sexual activity due to hormonal changes that occur during puberty. These hormonal changes lead to increased awareness of sexuality and desire for intimacy and sexual relationships. Additionally, during this stage, individuals may have a greater emotional maturity and a desire to start a family, although this is not always the case for everyone.