Age-related changes refer to the physical, psychological, and social changes that occur as individuals grow older. These changes can affect various aspects of a person's life, including their physical health, cognitive abilities, emotional well-being, and social relationships. Researchers study age-related changes to understand the aging process better and develop strategies to promote healthy aging and improve quality of life for older adults. This research area often covers topics such as age-related diseases, cognitive decline, changes in sensory perception, social isolation, and age-related changes in metabolism and immune function. By studying age-related changes, researchers hope to find ways to help older adults maintain their independence, health, and overall well-being as they age.