New research suggests that exposure to nature, particularly through sight and smell, can have a significant impact on our physical and mental well-being. Studies have shown that people who spend time in natural environments experience reduced stress levels, lower blood pressure, and improved gut health.

Source: https://www.livescience.com/health/a-direct-relationship-between-your-sense-of-sight-and-recovery-rate-biologist-kathy-willis-on-why-looking-at-nature-can-speed-up-healing