How Gratitude Helps Your Brain and Mental Health (thebestbrainpossible.com)
Research has proven many significant benefits in cultivating gratitude for mental and physical health. Studies show that the practice of gratitude can increase happiness levels by an average of 25 percent and overall health by, for example, increasing the quantity and quality of sleep. Beneficial outcomes can be achieved by such simple practices as praying, writing in a gratitude journal, placing a thankful phone call, making a mental gratitude list, or writing a thank-you letter to someone.