What happens to the body when caffeine is consumed?

Caffeine is a stimulant that affects the central nervous system, according to the Food and Drug AdministrationOff Site Icon (FDA).

Though caffeine’s main affect is to make your body feel more awake and alert, according to the FDA, it also can cause the following issues:

  • Dehydration
  • Dependency
  • Dizziness
  • Headaches
  • Heartburn
  • High blood pressure
  • Jittery, shaky feelings
  • Nervousness
  • Rapid heart beat
  • Trouble sleeping
  • Uneven heart rhythm

The effects of caffeine usually last about four to six hours, and can cause an overdose if consumed in extremely high levels, according to the FDA.

For more information about how caffeine affects your body, talk with your physician.

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