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Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, kola nuts, and certain medicines. It has many effects on the body's metabolism, including stimulating the central nervous system. This can make you more alert and give you a boost of energy.

For most people, the amount of caffeine in two to four cups of coffee a day is not harmful. However, too much caffeine can cause problems. It can

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Results 1 - 10 of 731 for caffeine
  1. Caffeine (National Library of Medicine)  
    Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, kola nuts, and certain medicines. ... of energy. For most people, the amount of caffeine in two to four cups of coffee a ...
  2. Diet - caffeine ... Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or ... been consumed. There is no nutritional need for caffeine. It can be avoided in the diet. Caffeine ...
  3. Caffeine in Pregnancy (March of Dimes Birth Defects Foundation)  
    ... this page It's been added to your dashboard . Caffeine in pregnancy Caffeine is a drug found in ... one 12-ounce cup of coffee. How does caffeine affect your body? Caffeine helps keep you awake. ...
  4. Caffeine Confusion (Nemours Foundation)  
    ... cup of coffee. So what is caffeine, anyway? Caffeine Is a Common Chemical Caffeine (say: KA-feen) ... sleepy or grumpy all day long. What Does Caffeine Do to Your Body? Caffeine can cause your ...
  5. Caffeine and Your Child (Nemours Foundation)  
    ... 5-ounce (43-gram) milk chocolate bars. How Caffeine Affects Kids A stimulant that affects kids and ... supported by research. Continue Foods and Beverages With Caffeine Although kids get most of their caffeine from ...
  6. The combination of ergotamine and caffeine is used to prevent and treat migraine headaches. Ergotamine is in a class of medications called ergot alkaloids. It works together ...
  7. Kids and Caffeine Video (HealthDay)  
    ... right-hand corner of the player. Kids and Caffeine HealthDay February 10, 2014 Related MedlinePlus Pages Caffeine Child Nutrition Transcript Nearly 3 out of every ...
  8. ... enable JavaScript. Energy Drinks, Coffee Increasing Sources of Caffeine for Kids, CDC Says Effects of excessive caffeine intake on youngsters aren't yet known, experts ...
  9. Caffeine (Nemours Foundation)  
    ... for his headphones — and some caffeine. What Is Caffeine? Caffeine is a drug that is naturally produced in ... also produced artificially and added to certain foods. Caffeine is defined as a drug because it stimulates ...
  10. Caffeine and Migraine (American Headache Society, Committee on Headache Education)  
    ... disabling headaches . Home > Caffeine and Migraine Print Email Caffeine and Migraine ACHE Newsletter Sign up for our newsletter by entering your e-mail address below. Caffeine and Migraine Robert E. Shapiro, MD, PhD and ...
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