During the any season, the idea of giving drives many people to help in selfless ways.During the any season, the idea of giving drives many people to help in selfless ways.  You know what giving does to change the world, but you haven't heard much about what giving does to the giver. Is there any science to back up the idea that giving is good for you, the giver?  The resounding answer is yes.  Dr. Roizen's guest is Jenny Santi, author of the new book, The Giving Way to Happiness: Stories and Science Behind the Life-Changing Power of Giving.  Learn the interesting way your brain is "hardwired" to give, how giving affects your health, and practical lessons on what kind of giving makes people the happiest. Bonus! Happiness is Powerful Medicine