Brain Health

Type 2 diabetes and high HbA1c are linked to faster memory decline and higher dementia risk. We checked the key studies and trials on blood sugar and the brain, and what actually helps.

Do memory supplements work? We checked the human research on 12 popular brain supplement ingredients, from multivitamins and B vitamins to ginkgo and Prevagen, and explain why lifestyle still beats pills.

Some memory loss with age is normal. We compare everyday forgetfulness with early signs of dementia, explain mild cognitive impairment and treatable causes, and show when to see a doctor.

Which foods really help memory? We checked the trials and big studies on the MIND and Mediterranean diets, fish, leafy greens, berries, nuts, olive oil, eggs and coffee, plus what to limit.

Brain fog usually has a cause you can find and fix. We checked the research on the most common causes, the tests worth asking for, practical fixes and the red-flag symptoms that need urgent care.

Exercise, sleep, a Mediterranean-style diet, blood pressure control and proven study techniques have the best evidence for better memory. Here are 12 research-based steps and the warning signs that need a doctor.