Laughter can make miracles happen! If a smile can make you feel happy, imagine what laughter can do to your senses! Scientifically, it has been proven that laughter helps reduce stress and even keeps heart diseases at bay. The muscles that contract when you laugh, helps increase the blood flow and also boosts the oxygen content. This impacts the heart and lungs as more endorphins are pumped in the blood. Bottom line- the endorphins help relax your body and mind. It also saves you from the risks of heart diseases and blood pressure.