Exercise is Medicine Level 1 Practice Exam 2025 – Complete Preparation Tool

Adolescents typically have higher energy needs due to several physiological factors. During adolescence, individuals experience significant growth and development, which includes increases in height, weight, and muscle mass. This growth phase requires additional energy to support the metabolic processes involved in tissue formation, including bones and muscles.

Moreover, adolescence is also a time when physical activity levels are often higher, especially in active individuals who participate in sports or other physical activities. The combination of growth demands and often elevated levels of physical activity contributes to the increased caloric requirements during this stage of life.

In contrast, older adults generally have lower energy needs as their metabolism tends to slow down, and they may become less physically active. Individuals in their 30s may have energy needs that vary widely based on activity levels, but they typically do not surpass those of adolescents. Sedentary individuals have the least energy requirements since they engage in minimal physical activity, which further lowers their caloric needs.