When we enter winter slowly but surely, you will undoubtedly sigh that you complained about the sweltering weather when enjoying rum and raisin ice cream on the beach on weekends, or that you had to pinch your nose when standing under someone's armpit on a crowded train, although you have managed to go home while still being visible during the day. This is one of the strange contradictions in life, isn't it? You just don't know what you have until it disappears!
As time goes by, you may find yourself getting weaker and weaker and feeling exhausted. Researchers believe that this is the result of increased production of melatonin, a hormone that regulates the sleep-wake cycle and is triggered by darkness. But don't be afraid! Although we can't transmit ourselves back to the long summer days, we can ensure that we have enough energy to spend the day, instead of letting the day dominate us. And the old secret is ... ……Chinese green tea! Besides being rich in antioxidants, green tea can also create miracles when you need to concentrate, stay awake, or increase your exercise income.
As time goes by, the production of adenosine (a neurotransmitter in the brain) gradually increases, which eventually leads to fatigue and makes you want to sleep. Caffeine has the ability to destroy this process and keep you energetic in your daily work. The caffeine content of green tea is about one-third of that of coffee, which can improve the energy level without causing nervousness when drinking coffee due to the content of L- theanine (an amino acid known for its relaxing properties). In addition, the content of L- theanine in green tea leads to the increase of alpha wave in the brain, which helps green tea drinkers enter a calm and alert state. Caffeine and L-theanine can improve cognitive function and refresh you.
Caffeine in green tea increases the level of adrenaline, and the stimulation of fatty acids in green tea can delay fatigue by nearly 25%, both of which help you work harder and longer. Therefore, green tea should be the first choice for those who want to improve their physical fitness. In addition, unlike black tea, which is completely oxidized due to the chemical reaction, the oxidation process of green tea is stopped, which means that it retains polyphenols called catechins, which can help you burn 3-4% more calories every day; No wonder green tea is often listed as a commercial weight loss supplement!