Smiling to express happiness is a natural part of your body. Our body is affected by all emotions. Things like stress, depression, and loneliness have an immediate and persistent negative impact on your heart. For healthy heart it has been advised that stay happy and be smiling.
“When you’re irritated or angry, your body releases stress hormones that can cause inflammation and muscle spasms that can lead to heart attacks.” And “Also, when you’re depressed, these stress hormones release chemicals in the body that increase vascular dysfunction and increase your risk of heart disease.”
Laughter relieves many negative symptoms associated with stress and depression. When you smile, your body releases hormones called endorphins. These hormones make you feel good and block all types of negative feelings or thoughts. No surprise you’re feeling nice once laughing!