Drink Nutrition

Caffeine

• Caffeine is a stimulant that can be addicting. • What is a stimulant?– are psychoactive drugs which induce temporary

improvements in either mental or physical function or both. Examples of these kinds of effects may include enhanced alertness, wakefulness, and locomotion, among others

Caffeine

• What are things we consume that have caffeine?– Energy drinks– Chocolate– Coffee– Soda drinks– tea

Too much

• Consumption of large amounts of caffeine – usually more than 250 mg per day – can lead to a condition known as caffeinism.

• Caffeinism usually combines caffeine dependency with a wide range of unpleasant physical and mental conditions including nervousness, irritability, restlessness, insomnia, headaches, and heart palpitations after caffeine use

Effects of caffeine

• Central Nervous system

• Cardiovascular– cardiac muscle (increases heart rate), and

respiratory system (relaxes air passages permitting improved breathing)

Effects Cont.

• delays fatigue (having the effect of warding off drowsiness and restoring alertness).– Makes the symptoms of sleep subside but they are still

there. • Insomnia• Nervousness• Restlessness• Irritability• Stomach upset

• Caffeine absorption occurs in the body very quickly – caffeine enters the bloodstream through the stomach and small intestine, and its effects are felt as soon as 15 minutes after consumption. It is completely absorbed within 45 minutes of ingestion. – Caffeine does not accumulate in the bloodstream

nor is it stored in the body, but it does persist – only about ½ is eliminated in the urine within 3 hours.

Energy drinks

• Tolerance may develop, depending on the person

• What in a energy drink?– Ginseng, Taurine, energy blend, Guarana, ect. – Little bit of sugar, salt and lots of B vitamins with

mega doses of caffeine

• http://www.youtube.com/watch?v=gxcTI1L5gyc

Sport drinks

• Great to replenish lost electrolytes, sodium and potassium.

• What is so bad about them?• Less than 2 hours of working out don’t need it• Sugar in drink

• http://www.youtube.com/watch?v=0i1akmTxBT0&feature=plcp

• http://www.sacbee.com/2012/10/19/4924536/death-of-teenager-from-caffeine.html

Caffeine

• Should Students your age drink Caffeine?• Are there benefits of sport and energy

drinks? • What are the problems with the above

drinks?• Can you overdose on Caffeine?• Do you know that energy drinks will destroy

your teeth?