Ashley Miller is a licensed social worker, psychotherapist, certified Reiki practitioner, yoga enthusiast and aromatherapist.
She has also worked as an employee assistance program counselor and a substance-abuse professional.
The end of adolescence and the beginning of adulthood varies by country and by function.
Furthermore, even within a single nation state or culture there can be different ages at which an individual is considered (chronologically and legally) mature enough for society to entrust them with certain privileges and responsibilities.
Persistent feelings of jealousy can damage a relationship and can prove difficult for both parties, particularly if the feelings are irrational or have no basis in reality.
For some teenagers, divorce, the formation of a new family with step-parents and step-siblings, or moving to a new community can be very unsettling and can intensify self-doubts.
For some teens, suicide may appear to be a solution to their problems and stress.
In studying adolescent development, adolescence can be defined biologically, as the physical transition marked by the onset of puberty and the termination of physical growth; cognitively, as changes in the ability to think abstractly and multi-dimensionally; or socially, as a period of preparation for adult roles.
Major pubertal and biological changes include changes to the sex organs, height, weight, and muscle mass, as well as major changes in brain structure and organization.