The coffee lovers know that the moderate amount of coffee can make people feel comfort while excess coffee makes people uncomfortable. Coffee is similar with drug; the amount should be moderate but not more or less. And how many caffeine amount you need to intake depends on your normal intake amount and your genetic susceptibility of gene. So if you found your parents can drink three cups of espresso at one time, and they do not have any untoward effect that means you can drink the equal cups of coffee.
If you have nervous headache, then taking acetaminophen and caffeine will be better than taking acetaminophen only. Caffeine does not cause migraine, and even related studies have found that it can cure migraine. Caffeine is good for health; taking caffeine mix with other drugs can improve their efficacy:
(1)Caffeine can increase the efficacy up to 40% of relieving headaches drugs, and it can make the body faster to absorb these drugs and shorten the time of effective, so many over-the-counter drugs contain caffeine which can cure headache.
(2)Caffeine combined with ergotamine, it can cure migraine and cluster headache, and overcome the sleepy brought by the antihistamines.
(3)Caffeine combined with bromide, it can make the excitement process of brain cortex and process of inhibition adjusted to recover stable, effective for neurosis.
one way valve knows, for the patient of cognitive impairment, if they intake 100 mg caffeine daily, it can improve their cognitive ability, memory and attention, also relieve symptoms of Alzheimer's disease, and prevent the Alzheimer Silent disease, the study found.