Drinking coffee during exercise does not do any good coffee common sense
The idea of losing weight by coffee has been around for a long time, especially fashion magazines have played an important role in promoting it. It's true that caffeine speeds up your metabolism, but does that mean it's sure to make people lose weight?
American coffee makes you a little lighter.
Coffee is a negative calorie food. Of course, this is not to say that the calories of coffee itself are negative, but that the calories you get from coffee are lower than the calories you consume when you drink coffee and digest it.
But this specifically refers to the most common and tasteless American coffee, and if you like coffee as a dessert, add sugar, milk, chocolate and cinnamon in it. Or maybe you have a big appetite, eat until you have enough to eat every day, and finally have a cup of coffee to "walk the seams".... Okay, you don't have to say anything. The Harvard School of Public Health has conducted a 12-year study on whether coffee can lose weight, and the results show that coffee drinkers are indeed less important than non-drinkers. But how much lighter is it? only 1 pound (less than 1 jin).
It seems that coffee is not a panacea for weight loss. As for the popular so-called "slimming coffee", its safety and the slimming effect of added ingredients have yet to be proved.
There is also less encouraging news: green tea, like coffee, is a negative-calorie drink, but it also has the effects of building muscle tissue, stabilizing blood sugar, regulating immunity and preventing cancer. If coffee has a feeling, maybe it will hate green tea.
Drinking coffee during exercise will lead to lack of water.
As for the relationship between coffee and exercise, many people think that since the essence of weight loss by exercise is to speed up metabolism, and coffee itself can also speed up metabolism, and coffee has exciting effects, then drinking coffee while exercising will certainly get twice the result with half the effort.
There seems to be some truth in that. Studies have shown that caffeine mobilizes fatty acids into the bloodstream by drinking coffee 40 minutes before exercise, making it easier for you to burn fat during exercise.
However, if you exercise as soon as you drink coffee, or if you drink coffee while exercising, caffeine will not have time to play these positive effects, but it will block specific receptors on the walls of blood vessels and hinder vascular dilatation, thus reducing myocardial blood flow and affecting oxygenation in the body, so that you can not get enough energy during exercise.
In addition, coffee also has a slight diuretic effect. If you drink while exercising, the water lost by the body will not be replenished enough, resulting in dehydration. Dehydration can make you look thin for a while, but you know it's unsustainable and harmful to your health.
A private fitness instructor with a price of 250 yuan per hour said: when exercising in the gym, drinking clear water is the best way to replenish water if you don't sweat much; if you sweat, you can drink sports drinks instead. It is not recommended to drink coffee during exercise, it does no good, and coffee will keep you excited and your body won't get enough rest after exercise.
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