Illustration: Jack Hudson
The warmth of the sun on your skin, the sounds of the birds in the trees—stepping outside can help anyone feel instantly better. But it turns out that the perks of greener environs reach far beyond your mood: In their new book, Your Brain on Nature,
Eva Selhub, MD, and naturopath Alan Logan explore the incredible physiological effects of being outdoors—including increased immune activity and less perceived effort during exercise (see ya, treadmill!). Read on for five research-backed ways to experience nature's healing touch.