Final answer:
Ageism is discrimination based on age, involving negative attitudes toward the elderly. It leads to misconceptions about their abilities and can vary in severity.
Step-by-step explanation:
Ageism is discrimination based on age, characterized by negative attitudes toward the elderly based on age. It involves stereotyping and discrimination against older individuals, leading to misconceptions about their abilities. Ageism can vary in severity, with effects ranging from mild patronizing behaviors to more severe discrimination in the workplace, healthcare, and assisted-living facilities.