Green tea is exclusively made from leaves of a plant species, called Camellia Sinensis, which originates from China. For 4,000 years, green tea has been used as both beverage and medicine in most parts of Asia. But for the past few decades, it has been subjected for scientific studies to discover its full potential in giving benefits to the human body.
Below are the benefits of green tea:
Ability to Boost Metabolic Rate
Green tea extracts contains polyphenols and caffeine that can fuel fat oxidation improving metabolic rate without increasing the heart rate. Green tea is a stimulant that helps prevent fatigue. Many fitness experts consider it as an essential part of a healthy diet.
Flavonoids found in green tea are powerful antioxidants that hunt free radicals. An American study claims that flavonoids in green tea are higher than flavonoids found in fresh fruits, vegetable juice, and wine. Flavonoids allow the body to produce natural enzymes that combat ailment.
According to Harvard Women’s Health Watch, green tea is the best source of catechins – these are antioxidants belonging to flavonoids that are more powerful than vitamin C and E. Catechins reduce the risk of cancers that may target the skin, breast, lung, colon, esophageal, and bladder.
Green tea can reduce risk of heart disease, lower LDL cholesterol, and increase good HDL cholesterol by improving the function of arteries. Green tea can also reduce risk of hypertension by at least 45 percent according to a Chinese study.
The best way to get the full health benefits of flavonoids and catechins in green tea is to drink it freshly brewed.
Ability to Improve Brain Function
A study in Taiwan indicates that polyphenols in green tea help improve brain function by strengthening the neurotransmitters in the brain. It is also used to treat various disorders including depression. Green tea has an amino acid called L-theanine, which is can elevate mood and reduce anxiety. According to a Chinese study, L-theanine can also help treat Alzheimer’s disease.
Aging happens when free radicals damage the tissue and cells, causing inflammation and oxidative stress. According to Rejuvenation Research journal, the strong antioxidants found in green tea can reduce the effects of inflammation and oxidative stress in the body.
Any side effect?
The only recorded side effect of green tea is insomnia due to its caffeine content, but this only happens when one drinks too much of this tea. In fact, green tea is lower in caffeine than coffee.