Black tea is has been linked to good health and energy. It contains more caffeine than other types of tea, and tends to have more flavor than other types of tea. Black tea, along with other types of tea may decrease LDL cholesterol levels, increase the ability of blood vessels to respond to stress, and therefore reduce the risk for hardening of the arteries, heart attack, and stroke.
All types of tea can facilitate weight loss, but green tea is thought to be especially good at helping a person shed extra pounds. This is because, with all types of tea, green tea increases fat oxidation by thermogenesis (heat production) in the human body. It also lowers LDL cholesterol levels, which makes it a good choice for diabetics. Many studies continue to show that green tea prevents diabetes, but on study performed at the University of Shizuoka, Japan by Yolo Fukino claims that green tea can control blood sugar levels that are already very high.
The antioxidants in Oolong tea, as well as in other types, fight infectious diseases and detoxify the liver. According to a study in the Journal of Medicinal Food, states that this type of tea, as well as green tea, can mitigate certain symptoms of Parkinson’s disease such as reduced memory and lack of focus.
Herbal teas have similar health benefits to other teas, but may contain more because they can be harvested from a variety of plants, which display different characteristics. Studies have shown that the consumption of herbal teas benefit the brain, ears, mouth, skin, lungs, esophagus, liver, breasts, bones, joints, digestive system, immune system, cardiovascular system, and also maintain healthy weight.
The main health benefits associated with Puerh tea is the inherently the same as all other teas, except in the Chinese practice of drinking it as a blood purifier and digestive aid, especially after a heavy meal. Some claim that Puerh makes for the ultimate hangover preventative and cure.
White tea helps defend against free radicals. White tea also strengthens the bodies own natural immune system, and has many antioxidant properties, which slow down the aging process, especially with skin and ultraviolet light. The flavonoids and tannins in white tea help in inhibiting growth of various bacteria that may cause plaque formation, promoting oral health. Similar to green tea, white tea has been shown to be beneficial in preventing such illnesses as lung cancer, helping the body fight cancer causing free radicals.
Recommended reading "The Healing Power of Tea" by Caroline Dow and publications: Archives of Environmental Health, International Journal of Molecular Medicine, Journal of Clinical Psychopharmacology.