Both tea and coffee have antioxidant effects and can delay human aging. Tea polyphenols in tea not only have antioxidant capacity, but also have pharmacological effects such as anti-tumor, anti-radiation, anti-hyperlipidemia, prevention and treatment of atherosclerosis, anti-virus and so on. Chlorogenic acid is the main antioxidant in coffee, which not only has antioxidant effect, but also has the functions of protecting liver, benefiting gallbladder, lowering blood pressure and reducing blood fat.

Tea and coffee can refresh you. Both of them contain caffeine, which can not only stimulate people's central nervous system to make them excited, but also suppress appetite, reduce fat accumulation and even significantly reduce the incidence of type II diabetes. Not only that, caffeine also has anti-cancer effect, which can directly inhibit the growth and metastasis of cancer cells.

Both drinks have certain effects and side effects on the human body, so it is no problem to drink them together nutritionally. However, because coffee and tea have refreshing effects, if they are drunk together, it is likely to affect people's mental state and even lead to insomnia.

Extended data:

Harm of tea and coffee to human body;

1. Tea contains a lot of oxalic acid, which easily reacts with calcium excreted by urine to generate calcium oxalate, thus causing urinary calculi. At the same time, tea trees will be sprayed with pesticides in the growth process, and pesticides are easy to remain on the surface of tea leaves, and untreated tea leaves are easy to carry residual pesticides. Washing tea is a necessary procedure before drinking tea, and there is also a saying in life that "don't drink the first sip of tea". Drinking tea on an empty stomach can also lead to dizziness, palpitation and trance.

2. Coffee contains a diterpenoid compound, which will increase the risk of cardiovascular disease. At the same time, acrylamide will be produced during coffee baking, and large doses of acrylamide have been proved to be carcinogenic in animal experiments.

3. Caffeine will lead to the loss of calcium in human body and increase the risk of osteoporosis; Can freely enter the fetus through the placental barrier, causing direct harm to the fetus; Caffeine is metabolized by the liver, which will increase the burden on the liver once it is taken in excess; Caffeine easily excites people's nerves, and people with neurasthenia can cause insomnia and headache after drinking too much tea or coffee.

Drinking coffee and drinking tea have their own advantages and disadvantages to human health, so we can't generalize. For healthy people, drinking tea or coffee in moderation is good for health. But if you drink too much or have no restraint, it will definitely bring harm to your body. For the elderly, pregnant women, young children and other specific groups, it is better to drink less.

People's Daily Online-Drinking coffee and tea has advantages and disadvantages, so drink it in moderation.