Forests and other natural settings can reduce stress, improve moods, reduce anger and aggressiveness and increase overall happiness. Forest visits may also strengthen your immune system by increasing the activity and number of natural killer cells that destroy cancer cells.
Many studies show that after stressful situations, people recover faster and better in natural environments than in urban settings. Blood pressure, heart rate, muscle tension and levels of stress hormones all decrease faster in natural settings.
In addition, according to Science Daily:
“Depression, anger and aggressiveness are reduced in green environments and ADHD symptoms in children reduce when they play in green settings.”