Chinese tea, including oolong tea or loose leaf tea, is made from the leaves of Camellia sinensis. Oolong teas are one of three types of Chinese green teas listed in traditional Chinese medicine (TCM). The other two types include white and black tea. They also contain less caffeine than their lighter counterparts.Oolong was originally used as a treatment for respiratory ailments such as bronchitis and tuberculosis before the discovery of antibiotics. Its use has since become largely replaced by Western pharmaceuticals; however it is still consumed for its purported health benefits and to aid weight loss (since it contains an amino acid that stimulates fat metabolism). Research suggests that it may be useful in alleviating symptoms associated with asthma, cancer, cardiovascular disease, high blood pressure, inflammation,:62 [12:25–26], insomnia[13:42–43], pain,[14:1529–33] Parkinson’s disease,[15:2275-85 ] osteoarthritis [16:127-28 ], rheumatoid arthritis [17:] , chronic obstructive pulmonary disorder (COPD) [18 ], erectile dysfunction [19 ] and female infertility..