Age affects muscle recovery after exercise due to physiological changes in the body, such as decreased levels of hormones and slower cell regeneration. As individuals age, their bodies experience a natural decline in muscle mass and strength, which can slow down recovery times. Older adults may require longer rest periods and more focused recovery strategies, such as incorporating gentle stretching or nutrition to support healing. Additionally, age-related conditions like arthritis can further complicate recovery, emphasizing the need for individualized exercise programs.