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A new study in Nature found that memory loss can be transferred via the gut. The culprit? A single species of bacteria that hijacks the nervous system. Here's how it works and what you can do today.
Nick Norwitz MD PhD | StayCurious MetabolismNew human research reveals how gut bacteria and creatine may restore brain energy and improve depression. If you have or know someone with depression, you need to read this.
Substack | StayCurious MetabolismExercise reshapes your blood–brain barrier. New 2026 data reveal a liver-to-brain pathway that may protect against aging and Alzheimer’s at the molecular level.
Dr. Nick | Stay Curious MetabolismThere is a food that has been shown in multiple human randomized controlled trials to improve metabolic health, reduce liver fat, and even drive weight loss independent of calorie intake.
Dr. Nick | Stay Curious MetabolismAlzheimer's may begin not with plaques, but with broken fat cleanup. New research reveals how ApoE4 fails to clear oxidized lipids — and what we can do today to reduce risk.
Dr. Nick | Stay Curious MetabolismA graph showing the relationship between microplastics accumulation in human brain tissue and dementia cases that shifted my perspective on neurological disease.
Dr. Nick | Stay Curious MetabolismA transparent look at the supplements I use for muscle, brain, gut, and sleep health — and the personal reasoning behind each choice.
Dr. Nick | Stay Curious MetabolismInstead of giving you a detailed breakdown of the latest Cell or Nature paper, I'm giving you a holiday gift guide.
Dr. Nick | Stay Curious MetabolismFiber is a complex group of compounds with radically different effects across individuals. In this letter, we'll break down one of the most elegant fiber studies published in recent years.
Dr. Nick | Stay Curious MetabolismPlastic is poisoning your heart and increasing your risk of heart attack, stroke and death by as much as 350%. Here's what you can do about it.
Dr. Nick | Stay Curious MetabolismCan you hit "reset" on your microbiome? In this newsletter, I'm going to explore what that reset might look like.
Dr. Nick | Stay Curious MetabolismFunctional gastrointestinal disorders, and irritable bowel syndrome (IBS), aren't just common anymore; they're becoming the norm. But what actually causes IBS? New research says...
Dr. Nick | Stay Curious Metabolism