Caffeine

major source of caffeine consumed by adults

coffe

major source of caffeine consumed by children

soft drinks

major source of caffeine consumed by teenagers/young adults

energy drink

3 types of xanthines

caffeine, theophylline, theobromine

Caffeine

CNS stimulant that acts on muscles and respiratory system

Theophylline

found in caco and tea, cardiac stimulant and bronco dilator, diarrhetic

Production of coffe

beans from coffea arabica and coffea robusta trees, beans are roasted to enhance flavor then ground

black tea production

dry and crush leaves, then oxidized

green tea production

steam fresh leaves to prevent oxidation

oolong tea production

allow leaves to oxidize a short time

chocolate production

coca beans are harvested, fermented, dried, cleaned, roasted, pressed into powder and mixed with sugar and coca butter

ingredients in soft drinks

water, flavor, sweetener, caffeine, colorings, perservative, cola nuts

ingredients in energy drinks

Taurine, Guarana, Ginseng, B Vitamins (such as B6 and B12

3 metabolites

paraxanthine, theophylline, theobromine

paraxanthine

increases breakdown of fat

theophylline

cardiac stimulant rid body water

theobromine

blood vessel dilator, rid body of water

actions of adenosine

inhibitory NT, causes sedation, sleep, anti convulsant, lower BP and HR, decreases urination, gastric secretions, stimulates GABA

mechanism of action of caffeine

caffeine block adenosine receptors, causes overall stimulation

acute effects of caffeine consumption

alertness, arousal, focus, increased bowel movement, alertness, alter mood,

medical and therapeutic uses of caffeine

respiratory stimulant to premature infants, asthma, and help treat migraine headaches, reduce risk of type 2 diabetes, liver disease, parkinson’s disease, alzheimer’s, stroke, cancer

chronic effects of caffeine consumption

tolerance, dependence, withdrawal, increased risk of osteoporosis, breast cysts and pms