Sam Westreich, PhD – Medium

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What is a Gut Microbiome, and Why Is It So Complex?

The potential, and the over-promising, of our newest organ

Jan 25, 2024

What is a Gut Microbiome, and Why Is It So Complex?

Jan 25, 2024

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The Most Interesting Biology Questions, Answered

Dr. Sam Westreich writes about biotech, Silicon Valley, and answers fascinating questions about science.

Sep 23, 2021

The Most Interesting Biology Questions, Answered

Sep 23, 2021

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Age of Awareness

Your Dog Could Kill an Entire Lake (With Their Meds)

How you can minimize flea and tick medications’ unforeseen consequences

9h ago

Your Dog Could Kill an Entire Lake (With Their Meds)

9h ago

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The Parenting Portal

Do Parents Have Stronger Immune Systems?

The challenges of fighting invaders who constantly change and mutate

Jul 1

A small child peeking around a corner, grinning mischeviously.

Jul 1

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Age of Awareness

Are Vegetarian Diets Easier for Certain Blood Types?

Should your blood type — A, B, or O — dictate your food choices?

Jun 18

Are Vegetarian Diets Easier for Certain Blood Types?

Jun 18

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The ‘Shocking’ Step to Better Sleep for Teens (It’s Healthy Food)

Separating lessons from hype in a recent Sleep Health Journal study

Jun 16

The ‘Shocking’ Step to Better Sleep for Teens (It’s Healthy Food)

Jun 16

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Substack is Full of Anti-Vaccine Misinformation

Scrolling through, and debunking, my top recommended “Health & Wellness” articles

Jun 13

Substack is Full of Anti-Vaccine Misinformation

Jun 13

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Wise & Well

Does the Order of Eating at Meals Matter?

Dessert first, or start with a salad? It may matter for managing blood sugar.

Jun 12

A woman eating a forkful of pasta at a table. For some reason, cherry tomatoes are scattered across the table.

Jun 12

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The Parenting Portal

How Many Trees Are Needed to Match My Wet Wipe Usage?

Measuring the environmental cost of a clean toddler’s face

Jun 9

The face of a baby chewing on a wet wipe

Jun 9

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Age of Awareness

Why ChatGPT Creates Scientific Citations — That Don’t Exist

It looks convincing, even in White House reports, but it’s often a sign of shoddy backwards research.

Jun 4

Why ChatGPT Creates Scientific Citations — That Don’t Exist

Jun 4

Sam Westreich, PhD

Sam Westreich, PhD

Friend of Medium

PhD in genetics, bioinformatician, scientist at a Silicon Valley startup. Microbiome is the secret of biology we’ve overlooked. https://westreich.substack.com

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