Ageism is discrimination or prejudice against a person on the grounds of age. While older people are the most common targets, younger individuals can also experience it. Ageism can manifest as institutional ageism through discriminatory policies, interpersonal ageism in social interactions, and internalised ageism where individuals adopt ageist beliefs about themselves. It is often rooted in negative stereotypes, such as the belief that older people are frail or incapable. Ageism is considered by some to be the last socially acceptable prejudice. It can negatively impact mental and physical health and may even be associated with earlier death. Efforts to combat ageism include policy changes, education, and intergenerational programs.