Green tea is a type of tea. It is made from Camellia sinensis leaves and buds. There are several varieties of green tea. It is one of the healthiest beverages. It is loaded with antioxidants and full with many health benefits. So here we are going to talk about the health benefits of green tea.
1. May improve brain function
Green tea helps to boost brain function. The key ingredient of green tea is caffeine. But it does not include caffeine as much as in coffee. Caffeine blocks an inhibitory neurotransmitter called adenosine and affects the brain. Also it increases the concentration of neurotransmitters like dopamine and norepinephrine. Various brain functions like the mood, vigilance, memory and reaction time improve by caffeine. Also green tea contains amino acid L-theanine, which can cross the blood-brain barrier. Compared to coffee, green tea gives energy and productivity more.
2. May increase fat burning
This is not a secret. Most of us know green tea burning fat. Before burn fat your body has to separate blood cells and move to the bloodstream. So the active compounds in green tea boost some fat burning hormones and improve the process. Studies say that people who drink green tea before exercising burn 17% more fat than people who don’t, which means it increases fat burning during the exercise also.
3. May reduce the bad breath
Green tea helps to prevent bad breath. Studies have found that antioxidants in green tea, called polyphenols, destroy many compounds that cause bad breath. Research done in laboratories has found that green tea extracts reduces the bacteria growth that causes bad breath. And also it reduces the production of compounds that cause bad breath.
4. May help to lose weight
Green tea boosts the metabolic rate and it helps you to lose weight. Studies show the people who consumed green tea lost an average of 2.9 pounds during 12 weeks, while sticking to their regular diet. Green tea helps to lose weight due to its rich nutritional and antioxidant content. Caffeine and a type of flavonoid called catechin which is contained in green tea helps to speed up metabolism. Catechin helps to break fat. Also both of them help to increase the energy that the body uses.
5. May protect the brain from aging
Green tea helps not only for improving brain functions, but also it protects the brain from aging. Animal and lab studies show that catechin compounds in green tea decrease the risk of developing Alzheimer’s disease and Parkinson’s disease. These are neurodegenerative diseases that are commonly found in old people.
6. May lower the risk of some cancers
Green tea does not lower the risk of every type of cancer. Antioxidants in green tea lower the risk of some cancers. Uncontrolled growth of cells causes cancers. Oxidative damages can lead to cancers. Antioxidants help to protect against oxidative damages, so it lowers the risk of some cancers. Several researches have shown that green tea lowers the risk of breast cancers, prostate cancer and colorectal cancer. But it needs more high quality research to confirm this.
7. May increase lifespan
This is the one that everyone is excited about. Those who drink 2-5 cups of green tea increase the lifespan and decrease all cause mortality. And also it decreases heart disease and decreases strokes. This makes sense that you will live longer by drinking green tea.