On Point with Meghna Chakrabarti On Point with Meghna Chakrabarti

Brainwaves: How does a brain stay healthy?

Aug 21, 2026 · 32m

Summary

In this episode, host Meghna Chakrabarti and neuroscientist Jacob Harth discuss strategies for maintaining brain health, introducing the "SWEET" acronym for sleep, water, eating, exercise, and time. They explore the gut-brain axis, highlighting how gastrointestinal health impacts cognition and conditions like Parkinson’s. The conversation also addresses rising dementia rates, regional disparities, and the importance of small, consistent lifestyle changes.

Topics discussed

On Point Club membership and upcoming interview Rising dementia rates and regional disparities in the US Defining brain health and measuring visual processing speed The SWEET acronym for maintaining brain health The gut-brain axis and its impact on cognition Parkinson's disease origins and leafy greens for eye health Biological effects of poor sleep and listener strategies Social determinants of health and policy recommendations Guest's personal brain injury recovery and closing thoughts
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