Harshi Peiris, Ph.D.

Harshi Peiris, Ph.D.

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The Science of the Siesta
The biology behind the perfect nap — and what longevity research reveals about rest, rhythm, and movement
 • Harshi Peiris, Ph.D.
International Day of Education: What Are We Really Teaching Future Biologists?
On education, science, and the cost of pretending
 • Harshi Peiris, Ph.D.
The Hidden Choreography of Sleep: Three Brains in One Night
It’s Not Lights Out—It’s Your Brain Switching to Its Most Brilliant, Secret Performance. The Science of How Your Brain Changes Form During Sleep
 • Harshi Peiris, Ph.D.
Sleep Isn’t One-Size-Fits-All. And treating it like it is might be the real problem
The Real Science Behind Sleepless Nights and the 4 Systems You Need to Hack for Deeper Rest
 • Harshi Peiris, Ph.D.
Sleep Isn't Optional: The Hidden Damage Happening When You Skimp on Shut-Eye
Unpacking the Science of Shut-Eye: Part 1 of 4 on Mastering Better Sleep
 • Harshi Peiris, Ph.D.
Your Body Isn’t a Machine. Your 2026 Health Goals Shouldn’t Be Either.
What If 2026 Was About Understanding Your Body, Not Fixing It? A science-based way to think about health, longevity, and what actually matters. Full…
 • Harshi Peiris, Ph.D.
Christmas and New Year special
Hi everyone,
 • Harshi Peiris, Ph.D.
Harshi Peiris, Ph.D.
Harshi Peiris, Ph.D.
Understanding neurodegeneration and aging through evidence, clarity, and practical insight. No hype, just facts.
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Harshi Peiris, Ph.D.

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