Brain health Archive

More than 30% of adults over 70 have amyloid or tau (proteins implicated in the development of Alzheimer’s disease) in their brains yet have no apparent cognitive problems. This may indicate greater cognitive reserve, the brain’s ability to compensate for damage.

Neurogenesis is the birth of new nerve cells, called neurons, in the brain. The ability to grow new neurons appears more prominent in super-agers, people 80 and older whose thinking and memory skills are as sharp as adults who are decades younger.

Tingling, leg weakness, and voice changes can be alarming. Learn how doctors sort out these symptoms and when Parkinson's disease may be suspected.

Encephalitis, or brain inflammation, can cause symptoms ranging from mild, flu‑like illness to life‑threatening confusion and coma. Causes, recovery, and urgent treatments vary by virus.

When tremors progress from a mild nuisance to disrupting daily life, specific therapies may offer relief and help steady your movements.

Muscle tightening or jerking during a severe migraine can have several explanations. Learn about the possible causes.

Depression and migraines often travel together, with each able to worsen the other.

Wondering if sour cream, yogurt, nuts, peanut butter, or other foods are migraine triggers? Learn which foods are proven culprits and how to spot your triggers.

A diagnosis of gastroparesis can be confusing and worrisome. Learn what's happening in the stomach and which steps may help relieve symptoms.

A blackout can be frightening and confusing. Learn what clues doctors look for and which tests help uncover the cause.