Actionable, evidence-based health news, tips, and protocols to help you be healthier than ever from Robin Berzin, M.D., CEO and Founder of Parsley Health and a busy mom of three.
Written by
Robin Berzin MD
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May 13, 2026
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6 min read
Women with frequent hot flashes are 63% more likely to have aortic calcification — independently of estrogen levels.
May 5, 2026
5 min read
CCR—creatinine-to-cystatin C ratio—is a longevity marker that measures muscle mass and bone density simultaneously. Creatinine is already on your standard labs. You just need to ask for cystatin C.
Apr 28, 2026
The water you drink every day might be one of your biggest sources of toxins.
Apr 21, 2026
7 min read
Your protein powder might be less effective — and less safe — than you think.
Apr 15, 2026
10 min read
Apr 7, 2026
11 min read
GLP-1 receptors live in the same brain circuits that govern sex, motivation, and pleasure. The research is thin — here's what to watch.
Mar 31, 2026
Ferritin under 50, TSH over 2.5, fasting insulin over 7 — all "normal." All making you tired.
Mar 24, 2026
9 min read
Bone loss isn't just about hormones and weight lifting. There's a third driver most women aren't thinking about.
Mar 17, 2026
12 min read
Most women find out they're in perimenopause years too late. Here's how to recognize it — and what to actually do.