- Alert brain: The stimulating effects of caffeine cause alertness right away. It can also temporarily relieve drowsiness and fatigue.
- Confusion: Too much caffeine can overstimulate the brain, leading to confusion.
- Headaches: A headache can occur from either too much caffeine or as a symptom of caffeine withdrawal. But in small amounts, it may relieve symptoms of a hangover.
- Decreased suicide risk: One study found that the mood-enhancing effect of caffeine was linked to a 45 percent lower risk of suicide in participants.
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6 Eye Symptoms and What They Are Hiding
Your symptoms: Red eyes Discharge that’s thick and crusty (along with itching) You might have conjunctivitis—inflammation from an infection of the outer layer of your eye. Your primary care doc