A tremor is an involuntary, rhythmic shaking movement—but it is a symptom, not a diagnosis. Tremors may occur at rest, during movement, while holding a position, or when contracting muscles against resistance. Causes range from stress, caffeine, and medications to essential tremor, Parkinson’s disease, metabolic disorders, and other neurologic conditions. Understanding when and how the shaking occurs can provide an important clue to what is causing it.

Influenza usually lasts days or weeks—but could its effects on the brain last much longer? From von Economo's mysterious encephalitis lethargica to modern research linking severe infections with neuroinflammation and later dementia, scientists are reconsidering the long-term neurologic consequences of infection. The evidence does not prove that influenza causes dementia, but it raises an important question: can infection alter the trajectory of an aging brain?

Vyepti® (eptinezumab) is a quarterly intravenous treatment designed to prevent migraines before they begin. Unlike daily medications or monthly injections, Vyepti is administered only four times per year and targets CGRP, a key migraine signaling molecule. Learn how this innovative therapy works, who may qualify, what side effects to consider, and the insurance steps often required before treatment can begin. This guide reviews the benefits, risks, and practical consideration