Scientific drinking coffee

Caffeine works in the same area of the brain as cocaine and heroin. The dose of caffeine poisoning is 150-200mg of less than a kilogram of caffeine, which is equivalent to drinking 100 cups of coffee in four hours. In 2007, someone died after taking 30 caffeine tablets. According to the normal consumption, caffeine is completely absorbed in 30-50 minutes, and its effect can last for 3 hours.

Signs of caffeine poisoning include headaches, fatigue, depression, irritability and loss of energy. So, do only coffee and tea contain caffeine? Let's take a look:

8 oz freshly ground coffee: 135-150 mg

8 oz instant coffee: 95 mg

8 oz cappuccino: 45-60 mg

8 oz tea or tea bag: 50 mg

8 oz iced tea mixed drink: 25-45 mg

8 oz coffee ice cream: 60-85 mg

8 oz Diet Coke: 31 mg

8 oz coffee yogurt: 45 mg

1.5 oz dark chocolate: 31 mg

8 oz root beer:16 mg

These data are only part of it, so don't underestimate the drinks we usually quote. Controlling caffeine intake is not about controlling coffee intake. In a case study in the UK, a teenager was hospitalized with muscle weakness, nausea, vomiting, diarrhea and weight loss due to caffeine poisoning caused by drinking 8L (about 2 gallons) of cola a day for the previous two years. She already consumes more than 1 gram of caffeine a day. Chocolate and coffee-flavored yogurt or ice cream are other measurable sources of caffeine.