TED Health TED Health

The science of gratitude and happiness with Sonja Lyubomirsky

Jul 14, 2026 · 17m

Summary

Host Dr. Shoshana Ungerleiter explores the glymphatic system’s role in brain health during sleep, framing it as active biological maintenance. She then presents TED Ed’s Brother David on cultivating gratitude to find happiness in every moment. Finally, happiness scientist Sonia Lyubomirsky argues that deep social connections and vulnerability are key to well-being. Together, these talks highlight how overlooked processes like rest, appreciation, and connection profoundly shape our lives.

Topics discussed

Sponsors: Nature Raised Farms, Kashi, and Kohler The glymphatic system and brain waste clearance during sleep Reframing sleep as an active biological state Introduction to today's talks on happiness and gratitude Brother David: Gratefulness and the 'Stop, Look, Go' method Sonia Lyubomirsky: Connection, love, and happiness science Synthesis: Overlooked forces shaping health and well-being Outro, credits, and final sponsor messages
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