Coffee is the most popular drink in the world. Can coffee be healthy?

Coffee is the most popular drink in the world. People like coffee more and more, whether at home, in the office, people drink coffee is a feeling, is a fashion, is a leisure, is a culture. Have you heard that coffee can also be healthy?

In Australia, tests of athletes who consumed low amounts of caffeine showed they could train 30 percent longer than athletes who did not drink coffee. The results were also 36% higher than usual.

The body's preferred source of energy for exercise is usually carbohydrates stored in the liver in the form of glycogen. Only after carbohydrate reserves are depleted (usually requiring more than 60 minutes of continuous aerobic exercise). Fat is metabolized as a source of energy, resulting in weight loss. But researchers at the Australia Institute of Exercise in Canberra have found that caffeine contains substances that allow muscles to burn fat directly during exercise rather than the usual carbohydrates.

The effect of caffeine on fat metabolism was discovered by scientists studying exercise performance. They found that cyclists who drank mild coke or coffee during races rode faster and farther than those who drank water.

Jane griffin, a sports nutritionist and consultant to britain's olympic team, said the findings could be important for anyone who exercises regularly. "A cup of coffee or cola, when absorbed by the body, can quickly promote fat dissolution into the bloodstream, allowing the body to use fat as a primary source of energy before converting limited carbohydrate reserves into energy," she said.

Coffee brings a lot of health to people. The principle of coffee and the content of health science are briefly introduced as follows:

The physiological effects of coffee on the human body

1, coffee can play an antioxidant role on the human body, coffee is rich in caffeine, caffeic acid, chlorogenic acid and other ingredients, can effectively remove free radicals in the body, repair the aging cells and tissues of the body.

2, coffee contains polyphenol compounds, has the function of protecting cardiovascular, can reduce low density lipoprotein in the body, dissolve blood clots and prevent thrombosis, a small amount of coffee can dilate blood vessels, to prevent cardiovascular disease. Coffee in high concentrations can also raise blood pressure. Coffee can prevent and treat Alzheimer's disease and prevent Parkinson's disease.

Caffeine is the most striking of all coffee ingredients. It belongs to a kind of plant xanthine, the nature and theobromine, green tea alkali the same. The right amount of caffeine can stimulate the cerebral cortex, prolong the sober state of the brain, make the thinking clear and agile, concentrate, relieve the pressure, adjust the mood, lift the fatigue, improve the work and study effect. Caffeine in low concentrations has antidepressant effects. Promote sensory judgment, memory, emotional activity, myocardial contractility, vascular expansion, blood circulation enhancement, improve body metabolism, reduce muscle fatigue, promote the secretion of digestive juice, improve the consumption of human calories, moderate drinking, weight loss function.