Caffeine Kick. (Graph It).Wake up and smell the ... soft drink? Every day millions of U.S. teens rely on soda for a quick energy boost. Why? Nearly 70 percent of all soft drinks made in the U.S. contain caffeine caffeine (kăfēn`), odorless, slightly bitter alkaloid found in coffee, tea, kola nuts (see cola), ilex plants (the source of the Latin American drink maté), and, in small amounts, in cocoa (see cacao). , a natural stimulant stimulant, any substance that causes an increase in activity in various parts of the nervous system or directly increases muscle activity. Cerebral, or psychic, stimulants act on the central nervous system and provide a temporary sense of alertness and well-being as extracted from more than 60 plant species--including coffee beans coffee bean see sesbania. and tea leaves. Caffeine revs up the body's central nervous system (CNS See Continuous net settlement. CNS See continuous net settlement (CNS). ), which regulates internal body functions through the brain and spinal cord spinal cord, the part of the nervous system occupying the hollow interior (vertebral canal) of the series of vertebrae that form the spinal column, technically known as the vertebral column. : the heart beats Discography Track listing # Title 1. I'll Be Over You 3:46 2. Tokyo 3:14 3. Hey (I've Been Feeling Kind Of Lonely) 3:06 4. Only Wanna Be With You 3:54 5. Play It For The Girls 3:30 6. Blue 3:12 7. Purest Delight 3:02 8. faster and pumps more blood and oxygen throughout the body. In turn, you feel energized. But too much caffeine can make you anxious and crave more of it--because it's addictive. Caffeine also interferes with the body's absorption of calcium, a nutrient crucial for strong bones. Federal law doesn't require beverage and food makers to disclose how much caffeine they insert in their products, so check out the chart below. And watch for our "Scientific Method" experiment on caffeine in the next issue.
Caffeine in
Beverage/Food milligrams
A cup of brewed coffee 135
Java Water (half cup) 125
Krank 20 100
Aqua Blast 90
Starbucks Coffee
Ice Cream (1 cup) 60
Josta (12 oz) 58
Mountain Dew (12 oz) 55
Surge (12 oz) 51
Diet Coke (12 oz) 47
Coca-Cola (12 oz) 45
Dannon Coffee Yogurt (8 oz) 45
Dr. Pepper (12 oz) 41
Sunkist Orange Soda (12 oz) 40
Pepsi (12 oz) 37
Hershey's Special
Dark Chocolate Bar 31
Barq's Root Beer (12 oz) 23
Hershey's Milk Chocolate Bar 10
7-Up or Diet 7-Up (12 oz) 0
Sprite or Diet Sprite 0
Stonyfield Farm 0
Cappuccino Yogurt 0
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