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15 Causes of an Eye Twitch

5) Caffeine

Symptoms: Excessive caffeine intake can include irregular and/or accelerated heartbeat, anxiety, dizziness, insomnia, irritability and insomnia and may be a factor in causing eye twitching.
Possible Causes: One may think that the causes of too much caffeine would be obvious, but many people are unaware of hidden sources of caffeine. For instance, some medications like cough mixtures can contain high levels of caffeine. Cola drinks, energy drinks and dark chocolate all contain caffeine and when consumed in addition to coffee and tea can result in a caffeine overload.
Solutions: Limit your normal caffeine intake to 2 – 3 cups per day. Avoid, or at least cut down on, other sources of caffeine.