Brain health guides
These guides cover the questions people over 50 ask most about memory: what's normal, what isn't, what lowers the risk, and how to help someone whose memory is going. Each one is written for readers rather than researchers and links to the studies and health agencies behind it. The research notes on saffron, berberine, microplastics and "type 3 diabetes" look at the science behind popular memory supplement claims.
Alzheimer's in Black Americans: What Drives the Higher Risk, and What HelpsOlder Black Americans are about twice as likely to have Alzheimer's as older White Americans. What research says about why, the genetics, and what helps.10 Warning Signs of Alzheimer's, Compared With Normal ForgetfulnessThe 10 early signs of Alzheimer's next to the ordinary memory slips of aging, other treatable causes of forgetfulness, when to see a doctor, and driving.A Practical Guide for Dementia Caregivers: Where to Get Help and What to Sort Out EarlyFor families caring for someone with dementia: free helplines, respite, Medicare's GUIDE program, the living will and health care proxy, and your own health.Habits That Protect the Brain After 50, and the Trials Behind ThemWhich brain health habits after 50 hold up in trials: blood pressure, combined lifestyle programs, the MIND diet, hearing, exercise and sleep, with results.Music and Memory: Why Old Songs Still Reach People With DementiaWhy familiar music survives in Alzheimer's, what a 2025 Cochrane review found music therapy can and can't do, and how to build a playlist that works.Vitamin E and Alzheimer's: The Trials, the Dose and the Safety LimitVitamin E slowed functional decline in two Alzheimer's trials but did nothing for mild cognitive impairment. The doses used, the safety limit and food sources.Berberine for Memory: Promising in Mice, Proven for Blood SugarBerberine lowers blood sugar about as well as metformin in some trials. Its memory benefits are still animal research. Dose, side effects and drug interactions.Saffron for Memory: What the Clinical Trials Actually ShowSaffron is the best-studied memory ingredient in many supplements. The trials in mild Alzheimer's and MCI, the dose used, safety, and how to judge a product.What Is "Type 3 Diabetes"? The Brain Insulin Theory, Explained Plainly"Type 3 diabetes" is a research term for insulin resistance in the Alzheimer's brain, not a diagnosis. Where it came from and what supports it.Microplastics in the Brain: What the 2025 Study Found and What It Didn'tA 2025 Nature Medicine study found plastic in human brain tissue, more in people with dementia. What the researchers measured, and what the headlines got wrong.