Kathryn Kelley Caffeine works by blocking adenosine receptors

Kathryn Kelley

§ Caffeine works by blocking adenosine receptors in the brain. Adenosine is known to slow nerve activity and promote sleep.

Coffee 100 mg 8 oz. Diet Coke 45 mg 12 oz. Lipton Iced Tea 48 mg 20 oz. Monster 160 mg 16 oz. 5 Hour Energy 200 mg 2 oz. Mountain Dew 54 mg 12 oz. Pepsi Max 69 mg 12 oz. Red Bull 80 mg 8. 46 oz. Rockstar Energy Shot 200 mg 2. 5 oz. Tea (black) 42 mg 8 oz. Tea (white) 15 mg 8 oz.

§ For most healthy adults, 200 -300 mg of caffeine is not harmful § 200 -300 mg of caffeine per day is considered a moderate or average amount § 200 - 300 mg of caffeine is about two to four cups of coffee a day

§ Antioxidants fight damage causing free radicals § Reduces the risk of Alzheimer's disease, Parkinson’s disease and cardiovascular disease § Decreases cognitive decline associated with aging § Increases levels of neurotransmitters § Low doses increase alertness and reduce fatigue § May reduce the risk of developing cancer

§ Consuming 500 mg to 600 mg of caffeine daily is considered a high amount of caffeine intake § Excessive caffeine intake can result in: § Insomnia § Nervousness § Restlessness § Irritability § Stomach upset § Fast heartbeat § Muscle tremors

§ What receptors are blocked by caffeine? § What is a high amount of daily caffeine intake? § What is the recommended amount of daily caffeine intake?

§ Which one of these is a health § Which is not a health hazard of q. A) decreases neurotransmitters q. A) fast heartbeat q. B) enhances fine motor movements q. B) decreased blood pressure q. C) decreases metabolic rate q. C) reduced control of fine motor benefit of caffeine? q. D) increases memory caffeine? movements q. D) bone loss

References Caffeine You may like caffeine's effects, but how much is too much? - Mayo. Clinic. com. (n. d. ). Retrieved from http: //www. mayoclinic. com/health/caffeine/NU 00600 Coffee, Love, Heart | Wallpapers Feed. (n. d. ). Retrieved from http: //www. wallsfeed. com/coffee-love-heart/ Discovery Health "Why does caffeine keep you awake? ". (n. d. ). Retrieved from http: //health. howstuffworks. com/wellness/drugs-alcohol/caffeine-awake. htm Google Image Result for http: //blogs. smithsonianmag. com/science/files/2013/08/diagram. jpg. (n. d. ). Retrieved from http: //www. google. com/imgres? start=200&sa=X&biw=1138&bih=508&tbm=isch&tbnid=Sju 9 KOy 7 r. XK 32 M: &imgre furl=http: //blogs. smithsonianmag. com/science/2013/08/this-is-how-your-brain-becomes-addicted-tocaffeine/&docid=Cit. T 9 wf. KGlp. FTM&imgurl=http: //blogs. smithsonianmag. com/science/files/2013/08/diagram. jpg&w =611&h=337&ei=LVJj. Ut. P 0 KOa 6 ig. LXs 4 DYDg&zoom=1&iact=rc&page=15&tbnh=163&tbnw=300&ndsp=14&ved= 1 t: 429, r: 8, s: 200&tx=136. 8333740234375&ty=78. 66668701171875

Google Image Result for http: //teensfueledbycaffeine. weebly. com/uploads/9/3/0/0/9300296/1614208. jpg. (n. d. ). Retrieved from http: //www. google. com/imgres? sa=X&biw=1138&bih=508&tbm=isch&tbnid=hn. LF 2 w. ED 286 YZM: &imgrefurl=http: //teensfueledby caffeine. weebly. com/what-causes-caffeineaddiction. html&docid=p. X 48 M 3 Fw. Vq. C_n. M&imgurl=http: //teensfueledbycaffeine. weebly. com/uploads/9/3/0/0/9300296/1614208. jp g&w=250&h=300&ei=8 l. Bj. Utv. ZMMHNiw. KMh. IHw. Cw&zoom=1&ved=1 t: 3588, r: 4, s: 0, i: 102&iact=rc&page=1&tbnh=191&tbnw=1 59&start=0&ndsp=6&tx=48. 8333740234375&ty=95. 83334350585937 Google Image Result for http: //www. homewetbar. com/images/prod/w-Giant-Coffee-Cup 75917. jpg. (n. d. ). Retrieved from http: //www. google. com/imgres? biw=1138&bih=508&tbm=isch&tbnid=B 3 T_y. VKEP 96 U 5 M: &imgrefurl=http: //www. homewetbar. co m/muy-grande-extra-large-coffee-cup-p-2842. html&docid=1 z. DAahwy 3 Na. XM&imgurl=http: //www. homewetbar. com/images/prod/w-Giant-Coffee. Cup 75917. jpg&w=1000&h=1000&ei=d 1 Jj. Ur. R 0 pr. KKAse. Jg. MAK&zoom=1&iact=rc&page=2&tbnh=188&tbnw=202&start=5&ndsp =15&ved=1 t: 429, r: 6, s: 0&tx=136. 50003051757812&ty=87 Health effects of caffeine - Wikipedia, the free encyclopedia. (n. d. ). Retrieved October 19, 2013, from http: //en. wikipedia. org/wiki/Health_effects_of_caffeine New Clues on Caffeine’s Health Benefits. (n. d. ). Retrieved from http: //www. webmd. com/diet/news/20110506/new-clues-on-caffeineshealth-benefits