The Science Behind Why Going Outside Boosts Your Body and Mind

September 22, 2026 - 11:19

British fitness expert Joe Wicks recently teamed up with neuroscientists to scientifically test the widely-held belief that spending time outdoors is good for us. The results offer compelling evidence that nature has a measurable impact on both physical and mental wellbeing.

Researchers monitored participants during outdoor activities and found significant changes in brain activity compared to time spent indoors. Brain scans showed reduced activity in regions associated with rumination and negative thinking, suggesting that natural environments help quiet the mind. Participants also reported lower levels of stress and improved mood after spending time outside.

On the physical side, outdoor activity encourages movement. Walking, cycling, or simply standing in a park increases calorie burn, supports cardiovascular health, and strengthens muscles. Sunlight exposure helps the body produce vitamin D, which plays a role in bone health and immune function. Natural light also regulates circadian rhythms, leading to better sleep quality.

The combination of physical exertion and mental restoration makes the outdoors a powerful tool for overall health. Even short periods outside can make a difference. A brief walk during lunch or sitting in a garden can lower cortisol levels and improve focus.

Wicks and his team hope the findings encourage more people to step outside regularly. The evidence suggests that nature is not just a nice break from daily life. It is an essential part of staying healthy in body and mind.