Coffee and caffeine stimulate muscarinic receptors. Stimulates intestinal peristalsis. In addition, drinking large amounts of water (3 or more glasses) causes the stomach to stretch body. Stimulates the gastrocolic reflex which leads to complete defecation.
However This will happen only when someone who has never had coffee before or once in a while drinks. That doesn’t drink coffee regularly. Therefore, anyone who knows that they rarely drink. Just don’t drink a lot of coffee. because in addition to the risk of diarrhea. Still may be hit by the effects of caffeine (in some cases). Such as palpitations, rapid heartbeat, insomnia, anxiety, headache, or some people may be allergic to caffeine. Such as swollen lips or tongue, rash. Facial swelling, suffocation, nausea and vomiting and dizziness as well UFABET

So, some tips for people who rarely drink. But I want to drink to relieve sleepiness. or want to drink to taste should choose to drink in a formula that is not very concentrated. May start with coffee, latte, mocha or order the barista to reduce the amount. And don’t drink more than 1 glass at a time. Throughout the day, do not drink more than 3 glasses (coffee mugs), slowly sip little by little, do not drink all at once. Or you can find food to eat while drinking as well. It will help your body absorb caffeine more slowly.