As the childhood song goes, "If you're happy and you know it, then your face will surely show it," but do you ever truly wonder why you're happy? Have you thought about where our emotions come from and why they make us feel the way we do? A panel of Harvard faculty members whose research sheds light on the range of human emotion will explore the science behind the smiles and tears during this March 20, 2012, seminar. Learn more about the Longwood Seminars by visiting hms.harvard.edu/public/longwood.

1. Beyond Belief
2. It's All In Your Head
3. The Power of Zzzzs
4. Demystifying Nutrition
5. Living Long, Living Well: Aging With Flourish
6. Food for Thought: Genetically Modified Nourishment
7. From Vision to Touch: Exploring the Five Senses
8. The Race to Grace: Surviving Stress
9. Patience and Patients: Understanding the Spectrum of Alzheimer's Disease
10. Singing in the Shower to Shaking in Your Boots: The Science of Emotion
11. Panning for Therapeutic Gold: Cancer Genetics

Harvard Medical School faculty members discuss topics ranging from meditation to aging in these mini-med school classes for the public.