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eWellness: Is caffeine good for health?

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Dr KK Aggarwal    12 September 2017

  • Caffeine is the most consumed stimulant in the world in the form of coffee and tea.
  • Short term benefits include mental alertness and improved athletic performance.
  • Short term adverse effects including headache, anxiety, tremors and insomnia.
  • Long term adverse effects include generalized anxiety disorder and substance abuse disorders.
  • Long–term benefits are dose–dependent.
  • Caffeine is associated with a reduced risk of Parkinson disease, Alzheimer disease, alcoholic cirrhosis and gout. Both caffeinated and decaffeinated coffee are also associated with a lower risk of type 2 diabetes.
  • Heavy coffee intake may trigger coronary and arrhythmic events in susceptible individuals, although coffee intake is not considered a long–term risk factor for myocardial disease.
  • Most studies show a modest inverse relationship between coffee consumption and all–cause mortality.
  • Caffeine withdrawal is a well–documented clinical syndrome with headache being the most common symptom. (Source: Uptodate)

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