Which mechanism best explains how regular physical activity supports psychosocial wellbeing?

• A. Increases cortisol to boost energy
• B. Improves mood via endorphins
• C. Reduces appetite
• D. Decreases social interaction

Answer: (B)

Regular physical activity supports psychosocial wellbeing mainly through mood enhancement driven by endorphin release. When you exercise, your body produces endorphins that act on brain receptors to create feelings of pleasure and relief from discomfort. This mood boost can occur during and after activity and is supported by other feel-good chemicals like serotonin and dopamine, which help regulate mood, motivation, and stress responses. Over time, consistent activity also improves sleep, reduces perceived stress, and boosts self-efficacy as you notice progress, all of which reinforce wellbeing. If you’re exercising with others, social connections can further strengthen wellbeing through support and a sense of belonging.

While cortisol can rise during exercise, it’s a stress-related hormone whose short-term increases aren’t the primary driver of lasting mood benefits. Appetite changes aren’t the main mechanism for psychosocial wellbeing, and decreasing social interaction would detract from wellbeing rather than support it.