caffeine

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© Learning ZoneXpress

Think about it:

Think about it You are pulling an “all-nighter.” How are you going to stay awake?

Caffeine:

Caffeine A natural chemical found in tea leaves, coffee beans, cocoa beans, and kola nuts Found in many common foods and drinks including: Coffee Soft drinks Tea Chocolate Energy drinks Medicines Classified as a drug Caffeine is a stimulant and can be addictive

Caffeinated Candy:

Caffeinated Candy Chocolate naturally has caffeine Companies creating caffeinated candy: Breath mints Gum Chocolate covered coffee beans

Caffeine: How Does it Work?:

Caffeine: How Does it Work? Absorbed in the stomach and the intestine Stimulates brain activity Physiologic effects: Increase blood pressure Increase pulse Increase stomach acid production Fat stores break down Fatty acids released into blood stream

Too Much Caffeine:

Too Much Caffeine Insomnia Restlessness Increased heart rate Increased blood pressure Abnormal heart rhythm Anxiety/ nervousness Irritability

Caffeine Sensitivity:

Caffeine Sensitivity Several factors influence sensitivity: Body Mass History of caffeine use Stress

Caffeine Withdrawal:

Caffeine Withdrawal Withdrawal symptoms: Headache Tiredness Mood swings Jittery feeling Difficulty concentrating

Prevent Withdrawal Symptoms:

Prevent Withdrawal Symptoms Taper your caffeine intake Eat small, frequent meals Exercise Get enough sleep

Caffeine Comparison:

Caffeine Comparison Drink Caffeine Energy drink 72 - 150 mg Brewed coffee 134 - 240 mg Tea 48 - 175 mg Soft drink 22 - 46 mg

Alternatives to Caffeine:

Alternatives to Caffeine Carbonated Beverages: Lemon-lime soda Orange soda Root beer Decaffeinated coffee and tea Candies: Caramels Licorice Gum drops CAFFEINE

Caffeine and Health:

Caffeine and Health Studies have found no substantial evidence linking caffeine to these conditions: Blood Pressure Cardiac Arrhythmias Pregnancy Osteoporosis Cancer

Caffeine and Hyperactivity:

Caffeine and Hyperactivity Average intake ages 5-18: 35-40 mg/day No evidence caffeine contributes to hyperactivity May have calming effect

What about fluid balance?:

What about fluid balance? Fluid balance Fluid loss = fluid taken in Does caffeine influence fluid balance? No dehydration and GI upset Slow re-hydration after exercise

Caffeine: Ergogenic Aid?:

Caffeine: Ergogenic Aid? Ergogenic : increases muscular work capacity  and overall performance Caffeine can be ergogenic at low to moderate doses Caffeine may increase endurance time Individual variation, try in training first

Would you drink a beverage that claims to…:

Would you drink a beverage that claims to… …improve performance? …increase concentration? …improve reaction speed? …increase metabolism?

Statistics:

Statistics 7.6 million (approximately 31%) of U.S. teenagers say they drink energy drinks. In 2006, $2.3 billion was spent by teens and young adults on energy drinks

Energy Drinks:

Energy Drinks Canned or bottled carbonated beverages with high amounts of sugar, caffeine, herbal stimulants and supplements Marketed with claims of: Increased endurance Strength and power Weight loss Feelings of euphoria

History of Energy Drinks:

History of Energy Drinks Originated in Asia and Europe in the 1960s First appeared in the U.S. in the 1980s with Jolt Cola

A Common Misconception:

A Common Misconception Sports drinks and energy drinks are not the same. Energy Drinks Caffeine filled High concentration of sugar Contain herbal stimulants Sports Drinks Fluid balance Electrolyte concentration Provide energy Isotonic

Energy Drinks and the Athlete:

Energy Drinks and the Athlete No energy drink can make you a better athlete Sugar, caffeine, and stimulants may cause an athlete to crash There is no substitute for hard work, good training, healthy diet, and adequate rest

Do you know what you are drinking?:

Do you know what you are drinking? Taurine Guarana B-Vitamins Glucuronolactone Ginseng Yerba Mate Green Tea Cordyceps Aloe Vera Leaf Carnitine Creatine Inositol Ginkgo Biloba Bitter Orange Milk Thistle Goji Berries Garcinia Cambogina Rind ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

What’s inside? Guarana:

What’s inside? Guarana A shrub that grows in South America Extracts of the plant, fruit, or seed A stimulant and flavoring 1 gram of guarana contains as much caffeine (40 mg) as a medium strength cup of coffee

What’s inside? Taurine:

What’s inside? Taurine Believed to enhance the effects of caffeine Involved in a number of physiological processes including neuronal excitability Energy drinks contain up to 10 times the usual intake from diet

What’s inside? Glucuronolactone:

What’s inside? Glucuronolactone “Increases feelings of well-being” A normal, human metabolite formed from glucose When glucuronolactone is taken orally, it is rapidly absorbed, metabolized, and excreted 600mg/can, normal human intake 250mg/day

What’s inside? B-Group Vitamins:

What’s inside? B-Group Vitamins B-vitamins include: Thiamine (B1) Riboflavin (B2) Niacin (B3) Pyrodoxine (B6) Claims to burn fat Excess B-vitamins are excreted in urine

Energy Drink Regulation:

Energy Drink Regulation Energy drinks are currently unregulated in the United States The Food and Drug Administration (FDA) requires beverage manufacturers to list the presence of caffeine on the label, but not the amount of caffeine in the product Herbs and supplements added to energy drinks are not strictly regulated by the FDA HOW MUCH?

Review:

Review What factors influence caffeine sensitivity? Body mass, history of caffeine use, stress level Name some beverages that are caffeine free. Lemon-lime soda, orange soda, root beer, water, milk, fruit juice, etc.

Review:

Review What are some marketing claims of energy drinks? Increased endurance, strength and power, weight loss, feelings of euphoria Why are energy drinks not a good choice for athletic events? The amount of caffeine in energy drinks is dehydrating and the high sugar content can cause an athlete to “crash”

Review:

Review Caffeine stimulates the central nervous system which makes us feel more awake and alert Energy drinks have a high caffeine and sugar content Herbal supplements in energy drinks are not regulated and are not guaranteed safe

Web Resources:

Web Resources Caffeine Awareness: www.caffeineawareness.org American Beverage Association: www.ameribev.org Energy Drinks and Food Bars: Power or Hype?: http://www.kidshealth.org/teen/food_fitness/nutrition/energy.html Caffeine: http://www.kidshealth.org/teen/nutrition/general/caffeine.html

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