The first early harvest of tea, plucked before the first flush, is called shincha. Shincha is made from the youngest new growth leaves, and is plucked from early April to early May. Shincha typically refers to the early harvest of sencha, but can refer to any type of tea plucked early in the season, before the main harvest. Because of the limited quantities in which it is produced, shincha is highly prized and expensive to obtain.
Unbeknownst to many, green tea actually comes from the same plant from where normal tea is obtained. Scientifically, it is known as Camellia sinensis. In fact, it is the same tea but it is processed differently. The normal black tea is obtained by fermenting the tea leaves. This fermentation changes its color and flavor while raising the level of caffeine and tannin in it. On the other hand, in the case of green tea, the tea leaves are dried or slightly steamed but not fermented. This is what makes it look green when it’s brewed.
In 2004, scientists at the University of Newcastle studied the effects of black and green tea on Alzheimer’s disease. In laboratory studies, both teas prevented the breakdown of acetylcholine, the neurotransmitter strongly linked with memory. The teas also inhibited enzymes known as BuChE and beta-secretase. These enzymes are found in protein deposits found in the brain of Alzheimer’s patients. (7)
Short-term studies have shown that drinking tea may improve vascular reactivity—a measure of how well your blood vessels respond to physical or emotional stress. There's also evidence that drinking either black or green tea may lower harmful LDL cholesterol levels. Blood pressure may also dip slightly in people who drink tea, but results from these studies have been mixed.
In addition to actual tea, detox concoctions typically include additional herbs, which may be designed to curb appetite, rev metabolism, or boost weight loss in other ways. One example is senna, a plant with a natural laxative effect. According to the Natural Medicines Comprehensive Database, the potential side effects of senna use may include abdominal pain and discomfort, cramps, bloating, gas, nausea, and diarrhea; excessive use can lead to potassium depletion and other electrolyte abnormalities, which can trigger muscle spasms and an abnormal heart rhythm. Another popular ingredient in weight loss teas is guarana, a plant that's often added to energy drinks. Its side effects are commonly related to its caffeine content, which may include nervousness, restlessness, stomach irritation, nausea, vomiting, headache, anxiety, agitation, ringing in the ears, and fast heart and breathing rates. Bottom line: Do your homework about exactly what's in a product before you put it in your body. Even "all-natural" substances can have potential side effects, especially if they're overused, combined with other supplements or medications that result in negative interactions, or if taken by those with pre-existing medical conditions.
supports cardiovascular and metabolic health. According to a study published in the Journal of the American College of Nutrition, researchers found subjects consuming five or more cups of green tea per day were less likely to develop hypertension (high blood pressure) and diabetes, or die of cardiovascular disease or stroke. Researchers also found in animal studies that EGCG improved heart health by preventing “overload-induced cardiac hypertrophy” – or thickening of the heart muscles.
Another big draw health benefit-wise is that matcha, like green tea, is loaded with antioxidants. A study, published in 2014, found the plant also had antimicrobial properties, particularly the four types of catechins (antioxidant properties flavonoids) it contains, against a few different types of microorganisms. Yet another study, published in Nature, proved that catechins inhibit the growth of a bacteria called Fusobacterium nucleatum — the bacteria that causes cavities and periodontal disease.
Neither red nor black tea is to be confused with Rooibos, often called “Red Bush Tea” or “Rea Tea” for short. Rooibos (Aspalathus linearis) is a South African plant that is a member of the legume family and is not related to the tea plant (Camellia sinensis). Rooibos has a very different taste and feel than red (or black!) tea, it is much sweeter and lighter than black tea, although it is often mixed with sugar and cream or a lemon as you might find heavy black tea drinking countries such as England or the United States.
Matcha green tea is the healthiest drink on the planet. As a fat-burner and cancer-fighter, Matcha dominates the rest of the world of tea. It’s far more nutritious than standard green tea because Matcha is made from ground up whole green tea leaves. It provides a stronger source of vitamins, minerals, antioxidants, and caffeine than standard green tea. With Matcha, you’re able to directly ingest all the nutrients.
Most detox teas contain caffeine, probably because this stimulant may suppress appetite, trigger your digestive system to let go of waste, and help you shed water weight. A caffeine-induced energy boost may also lead to working out a little longer or harder than usual. However, too much caffeine can also be risky (see above) and interfere with getting enough sleep–and catching too few zzzs may ultimately undo the tea's weight-loss effects. In fact, too little shuteye has been shown to trigger excessive eating and weight gain and even slow metabolism, which can make it easier to gain weight even if you don't eat extra calories. A good rule of thumb, regardless of where your caffeine is coming from, is to nix it at least six hours before bed. And if you're trying to shed pounds, commit to making adequate sleep a top priority.
Just have a cup of hot green tea after some rigorous exercise and you will be ready for a few more sets in no time. Furthermore, it effectively counters muscular pain due to overexertion of muscles. Although green tea isn’t widely consumed due to the presence of energy drinks in the market, if you visit Japan and China, you will see that green tea is the premier beverage used by practitioners of martial arts and various other sports.
Even with negligible evidence that matcha can boost a weight-loss regimen, the substance remains heavily endorsed. Philadelphia-based nutritionist Marjorie Cohn regularly enjoys matcha, adding it to her smoothies and chia seed pudding — even mixing it into her recipe for organic vanilla ice cream. She often recommends it to clients looking to cut out coffee, or to “hard core caffeine addicts” prone to reaching for a second or third cup of coffee.
Experts emphasize that the primary thrust of scientific research has been on the pure tea products -- green, black, or oolong tea, derived from a plant called Camellia sinensis. All of the many other "herbal" or "medicinal" teas found in supermarkets and health food stores may be tasty, and may be good, bad, or indifferent for your health -- but they haven't been the focus of concentrated research, says John Weisburger, PhD, of the American Health Foundation.
Jump up ^ Caini, S; Cattaruzza, MS; Bendinelli, B; Tosti, G; Masala, G; Gnagnarella, P; Assedi, M; Stanganelli, I; Palli, D; Gandini, S (February 2017). "Coffee, tea and caffeine intake and the risk of non-melanoma skin cancer: a review of the literature and meta-analysis". European Journal of Nutrition (Systematic Review & Meta-Analysis). 56 (1): 1–12. doi:10.1007/s00394-016-1253-6. PMID 27388462.
• One Chinese study found that men who drank more than three cups of tea a day reduced their risk of prostate cancer by 70 percent. In another study funded by the National Institute of Health, 79 men with prostate cancer were told to either drink 6 cups of green tea a day or 6 cups of water. After 3 to 8 weeks, the levels of prostate-specific antigen, a protein that may indicate cancer, were lower in the men who drank green tea than those who drank water. An indicator of inflammation, nuclear factor-kappaB, linked to cancer growth, was also lower in the men who drank the green tea.