http://blog.mindvalleyacademy.com/health-and-fitness/how-much-do-you-know-about-your-heart

HOW MUCH DO YOU KNOW ABOUT YOUR HEART?

Howard Martin, co-founder of HeartMath, explains the hidden power of your heart and how easy it is to train. These powerful, science-backed techniques are being used in schools, universities, and even Fortune 500 companies.