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Creamy and Smell: Many enjoy the creamy texture and inviting smell of freshly brewed coffee, a sensory experience that’s hard to replicate.
One study investigated how the timing of caffeine ingestion affects sleep. Researchers gave 12 healthy adults 400 mg of caffeine either six hours before bedtime, three hours before bedtime or immediately prior to bedtime. Aguggia, M. and Saracco, M. G. Pathophysiology of migraine chronification. Neurol.Sci 2010;31 Suppl 1:S15-S17. View abstract. Bell, D. G. and McLellan, T. M. Effect of repeated caffeine ingestion on repeated exhaustive exercise endurance. Med.Sci.Sports Exerc. 2003;35(8):1348-1354. View abstract.
Babkoff, H., French, J., Whitmore, J., and Sutherlin, R. Single-dose bright light and/or caffeine effect on nocturnal performance. Aviat.Space Environ.Med. 2002;73(4):341-350. View abstract. In another study, 213 caffeine users completed questionnaires after going 16 hours without consuming it. Daily users had greater increases in headaches, fatigue and other withdrawal symptoms than non-daily users ( 32).
Be aware that ‘legal highs’ and controlled drugs often contain caffeine. This is a problem as you do not know how much caffeine you are taking, and it could also increase the harms of some. One study of 6 ‘legal high’ products found that some contained around 90% caffeine. This means that taking one gram of the product would be like taking around 13 litres of cola, 3.75 litres of energy drink, or 12-15 cups of coffee. Caffeine toxicity has been observed with intakes of 1.2 grams or more in one dose. Consuming 10-14 grams at one time is believed to be fatal. Caffeine intake up to 10 grams has caused convulsions and vomiting, but recovery is possible in about 6 hours. Side effects at lower doses of 1 gram include restlessness, irritability, nervousness, vomiting, rapid heart rate, and tremors. Valproate is used to control some types of seizures. Caffeine might lower the effects of valproate and increase the risk of seizures in some patients. Harpaz E, Tamir S, Weinstein A, Weinstein Y. The effect of caffeine on energy balance. Journal of basic and clinical physiology and pharmacology. 2017 Jan 1;28(1):1-0. Phenytoin is used to control some types of seizures. Caffeine might lower the effects of phenytoin. Taking caffeine with phenytoin might reduce its effects and increase the risk of seizures.People often develop a “caffeine tolerance” when taken regularly, which can reduce its stimulant effects unless a higher amount is consumed. When suddenly stopping all caffeine, withdrawal symptoms often follow such as irritability, headache, agitation, depressed mood, and fatigue. The symptoms are strongest within a few days after stopping caffeine, but tend to subside after about one week. [3] Tapering the amount gradually may help to reduce side effects. Sources of Caffeine Bolton and Sanford, G. N. Caffeine: Phsychological Effects, Use and Abuse. Othomolecular Psychiatry 1981;10(3):202-211. Studies have found that higher caffeine intake appears to increase the amount of time it takes to fall asleep. It may also decrease total sleeping time, especially in the elderly ( 13, 14). Soda. A 12-ounce can of regular or diet dark cola contains about 40 mg caffeine. The same amount of Mountain Dew contains 55 mg caffeine.
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