Caffeine and pick-me-up Why is it refreshing to drink coffee? why is it exciting to drink coffee?

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

The secret of improving endurance-caffeine deceives you

British researchers tested cyclists and railway athletes with 350 milligrams of caffeine and decaffeinated drinks an hour later. The caffeine group outperformed the decaffeinated group, with the most significant difference in the first 20: 50 seconds of the 10-kilometer race and the first 90 seconds to 4 minutes of the marathon. The researchers believe that the main reason is that caffeine can accelerate fat metabolism and relieve fatigue, while the stimulation of caffeine to the central nervous system affects perception, misleading people into thinking that the pace seems to be easier.

It's best to drink an hour before exercise.

The simplest reason is that coffee has a good diuretic effect, and you always need to set aside some time to go to the toilet after drinking it. In addition, according to the Journal of Sports Science and Medicine (Journal of Science and Medicine in Sport), Australian researchers conducted experiments on 40 km cyclists and found that the effect of caffeine on exercise performance was about an hour after intake, and blood caffeine concentrations peaked about 120 to 150 minutes later.

How much is the right amount? Measure your weight.

Caffeine was once banned in the competition and was not removed until 2004. Caffeine is as risky as any drug, and excessive consumption can cause side effects such as dizziness, anxiety, palpitations and gastrointestinal discomfort. It is most appropriate to consume 3-6 mg caffeine per kilogram per day, for example, athletes weighing 67 kg can get about 200mg caffeine (150c.c. Ground coffee contains about 110 milligrams of caffeine), preferably no more than 300 milligrams a day.

More effective in restoring physical strength than sports drinks.

Many people like to drink sports drinks after exercise to help restore blood sugar and eliminate fatigue. However, Australian researchers suggest that the addition of caffeine can improve recovery efficiency. The researchers asked cyclists to ride hard for two days, exhausting their energy, then asked one group to drink carbohydrate-only sports drinks, while the other group drank more caffeine, and the comparison found that at the same time, those who drank caffeine had 66% more glycogen than those who drank only carbohydrate drinks.

Gargling can also get caffeine.

What if it's not convenient to have a drink during the competition? Carbohydrate gargle sold in foreign markets can achieve the effect of sports drinks without swallowing and gargling. Previously, New Zealand researchers have confirmed that in addition to sour, sweet, bitter and spicy, the tongue can also identify carbohydrates and quickly stimulate the brain to feel comfortable. Recently, researchers have suggested that gargling with caffeinated drinks is as effective as carbohydrate mouthwash.

To make the mood more stable.

Adults who drink more than four cups of coffee a day are 10% less likely to suffer from depression than those who don't drink coffee at all, according to the National Institutes of Health. Drinking more than two cups of caffeinated coffee a day can significantly reduce the risk of suicide, according to the Harvard School of Public Health. Scientists believe that caffeine can stimulate dopamine to transmit happiness and excitement, so it can be used as a mild antidepressant. For athletes, competition results are always good or bad, perhaps enjoy a good cup of coffee, maintain a happy, stable mood, is also an important "physical maintenance"!