
TED Talks Daily Why social health is key to happiness and longevity | Kasley Killam (re-release)
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May 5, 2026 Kasley Killam, a social scientist and author focused on human connection, explores why social health may be the missing piece of a longer, happier life. She shares a personal story about disconnection. She looks at belonging, loneliness as a public health issue, and everyday relationships. She also introduces a simple framework for building stronger bonds and making more time for connection.
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Maya Did Everything Right Except Build Connection
- Maya improved exercise, diet, and therapy after marriage, a move, remote work, and her dad’s dementia diagnosis, yet still felt unfocused and lost sleep.
- Kasley Killam reveals Maya lacked community, family, friends, and in-person coworkers, showing bodies and minds can improve while relationships still deteriorate.
Loneliness Harms Health Like a Public Crisis
- Social disconnection is not just sad; it functions like a public health threat that damages the body and shortens life.
- Kasley Killam links loneliness to stress, weaker immunity, and higher risk of stroke, heart disease, diabetes, dementia, depression, and early death.
Use The 5 3 Guideline To Build Social Health
- Use Kasley Killam’s 5-3 guideline: interact with five people weekly, invest in three close relationships, and spend about one hour a day connecting.
- She suggests chatting with strangers, making a to-love list, prioritizing face-to-face time, and swapping some smartphone time for texts, cards, or family calls.

