Caffeine is considered the most commonly used mind-altering drug in the world. While it can improve concentration and relieves stress, it can have some negative side effects. Get the cold hard facts on caffeine:

  1. Caffeine could make conception more difficult and cause underweight babies
  2. It can aggravate insomnia and cause increased anxiety and panic attacks, frequent urination and jittery hands
  3. For most people, moderate doses of caffeine (200-300mg) are not harmful
  4. No conclusive risk on the effects of blood pressure
  5. In one decaffeinated cup of coffee, there is 20 mg of caffeine
  6. One regular cup of coffee contains 100 mg of caffeine
  7. Two tablets of pain reliever contain as much as 2 cups of coffee

Want to help lower your risk of getting cancer? The answer could be in the food you eat! Dr. John Whyte, chief medical officer at WebMD and the author of "Take Control of Your Cancer Risk," says there are three kinds of foods that could really help prevent cancer: garlic, fish and grapes. And what three kinds of foods should you avoid? Red and processed meats, refined grains, and alcoholic and sugary drinks. Watch the videos below to learn more about how food could be connected to your cancer risk.