Caffeine is a naturally occurring substance that is found in 60 plants, including coffee beans, tea leaves and cacao pods, which are used to make chocolate. The U.S. Food and Drug Administration classifies caffeine as a food additive and drug. Concerta is the commercial name for methylphenidate.

Caffeine naturally occurs in more than 60 plants including coffee, teas and cacao pods. Pharmaceutical manufacturers introduce caffeine into their products because of its physiological effects on the body, such as vasoconstriction in the brain that relieves headaches.

If you suffer from migraines or severe headaches, chances are that you may take a pain medicine that contains caffeine. The reason manufacturers include caffeine in their migraine medicines is that caffeine typically helps the other drugs in the formula work faster, the Cleveland Clinic notes.

Other than prescription or illegal drugs, caffeine and theobromine are the most common central nervous system stimulants you may encounter. In fact, because of their inclusion in many popular products, you may consume far more of them than you would prescription stimulants.

Many people enjoy a cup of coffee in the morning. Caffeine is a bitter substance found naturally in coffee beans. Whether you need a to jump start the day or just enjoy the flavor, all forms of coffee contain caffeine.

Anxiety and depression are psychiatric conditions that can be treated with a variety of different medications, including citalopram. Although citalopram is generally safe, it can interact with other compounds that can lead to undesirable side effects.

You've probably heard that coffee is a diuretic that will cause you to lose large amounts of water, and will leave you dehydrated if you're not careful. Recent research has shown that this is not case, due to the high water content in coffee.

Chemotherapy is a type of cancer treatment that targets and destroys cancer cells. The numerous kinds of chemotherapy drugs are each tailored for certain types of cancer and each associated with certain side effects. You may have to alter your diet while receiving chemotherapy treatment.

Your peripheral nerves communicate information between your body and your brain, carrying the signals through the spinal cord and other tissues, according to a report from Elmhurst College. Neuropathy is a type of nerve damage that can involve just one or several nerves in your body.

Yorkshire Gold Tea is a brand of black tea manufactured by the English company Taylors of Harrogate. Aside from tea, Taylors of Harrogate also provides consumers with a variety of products for tea time, such as sweet cakes and collectible items.

Walk into any grocery store and you may get the caffeine jitters just looking at the overwhelming number of coffee brands, roasts and blends. Maxwell House Coffee, a favorite for generations, offers a full product line to suit even the most discriminating coffee drinker.

Thinning hair is a problem for 85 percent of men by the age of 50, according to the American Hair Loss Association. Hair loss can affect both men and wome. Pattern baldness or androgenetic alopecia is the most common type of baldness, and according to the Mayo Clinic affects roughly one-third of both men and women.