Harshi Peiris, Ph.D.
Understanding neurodegeneration and aging through evidence, clarity, and practical insight. No hype, just facts.
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 90 | Founded | a year ago | Last Issue | 4 days ago |
| Active | |||||
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neuroscope.substack.comLatest Issues
Menopause and the Brain in 2026: What the Clinical Trials and Studies Actually Showed
Meet Lena. Lena is 51 and manages a team of engineers. Night sweats wake her at 3 a.m., and she lies awake until 5. In meetings, she reaches for a word she has used a thousand times, and it simply isn’t there. Her mother was diagnosed with...
Too Old to Look?
When the Bleed Is a Tumor
Frank Delgado stopped on the fourth step.
Colorectal Cancer Under 50: What 2026 Actually Moved, From the Lab to Clinical Trials
Picture a 34-year-old who notices blood on the toilet paper for a few weeks and blames it on hemorrhoids. Her doctor agrees. She is too young to be screened, too busy to push, and too healthy on paper for anyone to think of the word “cancer...
The Day After
Episode 7 of What COVID Left Behind: the racing heart when you stand up, and the crash that comes a day late
You stand up, and your heart starts racing. You get through an ordinary day, and the next morning you can’t get out of bed.
Iron Deficiency and Menopause: The Explanation That Was Only Half Right.
Diane Kessler has heard the sentence so many times she can finish it herself.
“Heavy periods at your age are normal.
It’s perimenopause. It will settle down once things stop.”
She is 48. For the past few years, her periods have come he...
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Hi, I'm Harshi. I write early with coffee and a stack of research papers. I break down brain health from wherever I am, sometimes the lab and sometimes my kitchen table. Always clear, honest science that makes sense.
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