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An EEG test (electroencephalogram) records the brain’s electrical activity through small sensors placed on the scalp, and it’s one of the most common tools neurologists use to look into seizures, fainting spells, and unexplained confusion. It’s painless, involves no radiation, and the wires only listen; they don’t send any current into your head. A routine…

If you sleep a full seven to nine hours and still fight to stay awake at your desk, in class, or behind the wheel, the problem may not be your habits. Narcolepsy and idiopathic hypersomnia are neurological sleep disorders in which the brain can’t hold a steady state of wakefulness, and both need a medical…

Most eye twitching is harmless. A flickering lower or upper eyelid, usually in one eye, is almost always eyelid myokymia, a benign twitch set off by poor sleep, stress, caffeine, or dry eyes, and it fades on its own within days to a few weeks. A twitch that lasts longer, forces the eye shut, affects…

The Epley maneuver is a short sequence of head and body positions that moves loose calcium crystals out of the inner ear’s balance canal and back to where they belong. For benign paroxysmal positional vertigo, the most common cause of spinning dizziness, it often stops the vertigo in one or two sessions. It works best…