Forest bathing has been around for centuries, and encourages one to reconnect their senses and pay attention to nature.
Researchers in Japan gathered information about the phytoncides chemical. This chemical is produced by trees and may reduce the stress hormone cortisol in the body. Benefits of forest bathing include, helping with anxiety, weak immune systems and mood disorders.
These forest baths can be as short as fifteen minutes, in order to reap the beneficial for multiple ailments. In addition, after a 2-3 hour hike it very calming.
Source – https://www.brit.co/forest-bathing/