Refine Longevity
Evidence-based insights on metabolic health, longevity, and the science of sustainable change. Written by Natalia Schneider, metabolic health coach and founder of Refine Longevity.
7 min read
You did everything the same. Same meals, same movement, same routine. Then somewhere around 40, it stopped working. Here's what women in perimenopause need to know before starting a GLP-1 — and what most prescribers aren't telling them.
5 min read
Should you take Ozempic? Can you do it without medication? The evidence says these aren't competing approaches — they're complementary. Here's what actually determines which is right for you.
7 min read
Can you come off Ozempic without the weight coming back? The honest answer: it depends entirely on what you've built while you were on it. Here's the exit strategy that actually works.
6 min read
You're not hungry. You just ate. But you can't stop thinking about food. Here's the biology behind food noise — and what GLP-1 medications reveal about why willpower was never the problem.
6 min read
Up to 40% of weight lost on GLP-1 medications can be lean mass. Here's what's happening with muscle loss on Ozempic and semaglutide — and what you can do to prevent it.
7 min read
Most people regain the weight within 18 months of stopping Ozempic. Here's the biology behind why — and what actually determines whether your results last after stopping semaglutide.
8 min read
TSH alone doesn't tell the full story. Free T3, the DIO2 gene, and conversion problems are routinely missed — and can explain 15 years of fatigue, weight gain, and "normal" results.
6 min read
Most people hear "longevity" and think supplements. The interventions with the strongest evidence are not exciting, not new, and mostly free. They're metabolic.
6 min read
Your blood tests came back normal — but you still feel exhausted and foggy. Here's why standard lab ranges often miss early metabolic dysfunction.
8 min read
I almost went on one myself. Here's what the GLP-1 conversation is missing — and what the research actually says about what happens when you stop.
9 min read
Restriction triggers hunger hormones, crashes serotonin, and trains your body to store fat. Here's the biology behind why diets backfire — and six evidence-based approaches that actually work.
12 min read
It's not a willpower problem. Food noise has a biological explanation — and understanding it changes everything about how you deal with it.
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