Nature has a calming effect on the mind. Something as simple as indoor plants or images of natural scenes can reduce anxiety, anger, and stress. These benefits are amplified when you walk outdoors. 20 minutes of outdoor activity is linked with low cortisol levels, the stress hormone. Outdoor exercises too outperforms gym workouts in reducing anxiety. Sunlight boosts serotonin, a neurotransmitter that stabilizes mood, increases energy, and enhances focus. This, combined with exercise can have a positive impact on your health.