Coffee – Good or Bad?
Is coffee good for health or… is coffee bad for health? An eternal question. Since childhood, many people know that drinking a lot of coffee is harmful for our body. The first study that proved the positive effect of caffeine on body performance has been conducted yet in 1978. In today’s article the editorial team of The Fashiongton Post will help you figure out how things really are.
Scientists confirmed that the positive effect of caffeine on the nervous system can improve your mood, increase learning ability, improve memory, attention and performance, when taking 1–5 milligrams per one kilogram of your body weight. For example, a cup of espresso has an average of 100 mg of caffeine, and a cup of brewed coffee in a cezve or geyser coffee maker has 90-200 mg.
More recent studies have shown that the beneficial effects of caffeine can be markedly reduced when taken with sugar. So, for a positive effect, you should drink coffee without sugar, and this is a proven fact.
When is caffeine bad
With an increase in the dose up to 9-13 mg per 1 kg of your body weight (on average, this is 6-9 cups of espresso for an adult of average build), the negative effect of caffeine is manifested, that is, a reduction in the total time and deterioration in the quality of sleep. With a dose of 15 mg per 1 kg of body weight — palpitations, headaches, nervousness, insomnia, irritability and gastrointestinal disorders can happen.
90–200 mg — a cup of espresso or americano;
2–3 mg — a cup of decaffeinated coffee;
70–80 mg — a cup of latte or cappuccino;
40–100 mg — a cup of instant coffee;
100 mg — a cup of cocoa;
40–50 mg — a cup of black tea;
20–30 mg — a cup of green tea;
80 mg — in 100 g of chocolate;
65 mg — in 1 liter of Coca-Cola;
100–350 mg — in 1 liter of an energy drink.
And finally, an interesting fact: did you know that the lethal dose of caffeine is equal to 18 grams per day, which is about 2 liters of espresso?