After hearing that laughing is a good medicine for you, I didn’t believe so I tried searching on google for more information!!
After knowing that laughing is really a true medicine than I thought I wanted to share with you Balian.org ers!!
Laughter is a powerful antidote to stress, pain, and conflict. Nothing works faster or more dependably to bring your mind and body back into balance than a good laugh. Humor lightens your burdens, inspires hopes, connects you to others, and keeps you grounded, focused, and alert.
With so much power to heal and renew, the ability to laugh easily and frequently is a tremendous resource for surmounting problems, enhancing your relationships, and supporting both physical and emotional health.
Laughter is good for your health
Laughter relaxes the whole body. A good, hearty laugh relieves physical tension and stress, leaving your muscles relaxed for up to 45 minutes after.
Laughter boosts the immune system. Laughter decreases stress hormones and increases immune cells and infection-fighting antibodies, thus improving your resistance to disease.
Laughter triggers the release of endorphins, the body’s natural feel-good chemicals. Endorphins promote an overall sense of well-being and can even temporarily relieve pain.
Laughter protects the heart. Laughter improves the function of blood vessels and increases blood flow, which can help protect you against a heart attack and other cardiovascular problems.
The Benefits of Laughter
Physical Health Benefits:
Boosts immunity
Lowers stress hormones
Decreases pain
Relaxes your muscles
Prevents heart disease
Mental Health Benefits:
Adds joy and zest to life
Eases anxiety and fear
Relieves stress
Improves mood
Enhances resilience
Social Benefits:
Strengthens relationships
Attracts others to us
Enhances teamwork
Helps defuse conflict
Promotes group bonding
For more info please check http://helpguide.org/life/humor_laughter_health.htm since I summarized the information 
So baby keep laughing, you know the sun is shining 
“remix for Baby keep smiling, u know the sun is shining”