At what age range does adolescence usually begin?

Adolescence typically begins around the age of 10 and can last until about 15 years old. This period is characterized by significant physiological, emotional, and social changes as individuals transition from childhood to adulthood. During this phase, individuals experience puberty, which includes the development of secondary sexual characteristics and other physical changes.

Recognizing that adolescence starts around age 10 helps to contextualize the growth spurts, hormonal changes, and cognitive developments that occur during these critical years. Understanding this age range is important for grasping how adolescents navigate their identities, peer relationships, and academic challenges. Thus, pinpointing the onset of adolescence accurately is essential for studies in human development and biology.