^ Jump up to: a b Zhang C, Qin YY, Wei X, Yu FF, Zhou YH, He J (February 2015). "Tea consumption and risk of cardiovascular outcomes and total mortality: a systematic review and meta-analysis of prospective observational studies". Eur J Epidemiology (Systematic Review and Meta-Analysis). 30 (2): 103–13. doi:10.1007/s10654-014-9960-x. PMID 25354990.

Day 2: I hopped out of bed, made my 2nd cup of tea, then went about my day. As the hours wore on, though, I grew discouraged. The reviews I had read and testimonials from friends had assured me that the tea was going to start working its magic very quickly, but my stomach still felt perfectly normal and average. Since I am the perfect blend of spontaneous, self-destructive, and optimistic, I went ahead and made myself my 3rd cup in 24 hours (Remember that last night I drank it at night instead of the recommended first-thing-in-the-morning.).
Domestic Process: This is a very simple process. It involves repeated steeping of tea in hot water and the disposal of the water (you may use this tea to serve those who don’t mind having caffeinated tea). The more you repeat the process, the less caffeine there will be left in the tea, but the same is true of the taste and flavor. Basically, don’t overdo it. Two or three steepings are probably safe. After all, you do want tea and not plain, hot water, right?
Green tea also seems to boost physical performance, increase exercise endurance, and decrease reaction time, and there are many, many such studies showing these effects from caffeine, although other ingredients in green tea may aid this effect. Caffeine, and green tea’s, ability to mobilize fatty acids in fat tissue to make them more easily available for use as energy also seems to aid physical performance. In one study, caffeine was shown to significantly increase physical performance (exercise endurance and exertion). The antioxidants in green tea may also help prevent tissue damage during physical exertion as well.

After putting my health at risk not once but twice with detox teas, I decided to share my horrific tale. 2017 is right around the corner and I know there are a few people looking to shed some pounds and get their body tight as part of their new year resolution. With “Instagram Tea Companies” promoting their end-of-the-year sales by way of some of your celeb faves, I must advise you that the journey to get slim quick is not as glamorous as one might think.

What are different green teas made of exactly, and are they totally natural? Green, black and oolong teas come from the Camellia sinensis plant. Green tea consists of leaves that haven’t been fermented so they contain the highest level of antioxidants. For example, flavonoid antioxidants account for about 30 percent of the dry weight of green tea leaves. (3)

Sejak (세작; 細雀; lit. "thin sparrow"), or dumul-cha (두물차; lit. "second flush tea"), is made of hand-picked leaves plucked after gogu (20–21 April) but before ipha (5–6 May).[77][78][79] The tea is also called jakseol (작설; 雀舌; lit. "sparrow tongue") as the tea leaves are plucked when they are about the size of a sparrow's tongue.[78] The ideal steeping temperature for sejak tea is 60–70 °C (140–158 °F).[80]
One of the key components in Matcha is the amino acid L-theanine, which is found almost exclusively in shade-grown green teas like Matcha. When L-theanine is combined with the natural caffeine in tea, it metabolizes more slowly, releasing the caffeine over a longer period of time and providing a stable three to six hour long energy boost (versus coffee caffeine at an hour to an hour and a half).
Even organically grown green teas have been shown to contain lead, which is absorbed by the plant from the environment, particularly tea grown in China. When traditional green tea is steeped, about 90% of the lead stays in the leaf, which is discarded. With matcha, since the whole leaf is consumed, you will ingest more lead. One independent group, ConsumerLab.com, which tested teas, estimates that a cup of matcha may contain as much as 30 times more lead than a cup of green tea. Therefore, they recommend drinking no more than one cup daily, and not serving it to children.
Jump up ^ Serban C, Sahebkar A, Antal D, Ursoniu S, Banach M (September 2015). "Effects of supplementation with green tea catechins on plasma C-reactive protein concentrations: A systematic review and meta-analysis of randomized controlled trials". Nutrition (Systematic review & meta-analysis). 31 (9): 1061–71. doi:10.1016/j.nut.2015.02.004. PMID 26233863.

Light and crisp, Rooibos can be sweetened or un-sweetened, with or without other flavors. I sometimes make a cup of rooibos tea and add lemonade, which complements the tea nicely. Companies like Numi, Traditional Medicinals and Republic of Tea all offer rooibos teas, and the company Roobie Red makes a delicious bottled rooibos tea with other natural flavors added. Kids love it, and they don’t even notice they’re drinking something uber-healthy.
According to the EMT, I had experienced the side effects of a Valsalva Maneuver. A Valsalva Maneuver is a forceful attempted exhalation against a closed airway. I had tried to force a push during one of those painful pangs I felt earlier. This caused an internal strain, resulting in a drop of my heart rate. The pain of the cramps had knocked the wind out of me. Had I been older and/or had a history of heart disease, I could have died. Common? No. Possible? Absolutely.
In 2013, global production of green tea was approximately 1.7 million tonnes, with a forecast to double in volume by 2023.[30] As of 2015, China provided 80% of the world's green tea market, leading to its green tea exports rising by 9% annually, while exporting 325,000 tonnes in 2015.[31] In 2015, the US was the largest importer of Chinese green tea (6,800 tonnes), an increase of 10% over 2014, and Britain imported 1,900 tonnes, 15% more than in 2014.[31] In 2015, Kenya was the largest exporter of black tea in the world (443,000 tonnes).[31]
Day 3: As I started to make my 5th cup in 3 days, my best friend said, “Ab, I really don’t think you should be drinking so much of this stuff. Why don’t you just stick to the recommended amount?” I responded with “It’s just TEA — what’s the worst that could happen?” On day 3, I learned. I had decided to give up coffee during my 28 days, both as a way to save my sanity and excretory system and as a way to wean myself out of my coffee habit. That was really stupid. By day 3, I was experiencing a horrifying caffeine headache and a rough case of the spins. I was also literally exhausted and finally feeling the ~desired effects~ of the detox (frequent trips to the bathroom, to put it lightly), so I was dealing with an excess of that on top of my other horrible side effects. Do I blame the tea? Not even a little. I blame myself for overindulging in too much of a good thing. From there on out, I decided to follow the rules.

Green tea has slightly more antioxidants compared to black tea, although both are still great sources. The ORAC value (antioxidant content) of brewed black tea is 1,128 while green tea is slightly higher at 1,253. Black tea and green tea both contain antioxidants, including polyphenols. Some research shows that green tea contains more than four times the catechins that black tea does. Both types can contribute antioxidants to your diet and have been shown to have antiviral, anti-inflammatory, detoxifying and immune-stimulating effects.
Shade grown: All matcha is made from shade-grown tea leaves—a labor-intensive process where tea bushes are protected from the sun and light is filtered to the bushes in a very controlled manor. Shading boosts the chlorophyll production in the plant, giving the leaves a rich green color. The lack of sun reduces the plant’s photosynthesis of the leaves, which in turn alters the naturally occurring levels of caffeine, flavanols, sugars, antioxidants, and theanine. By controlling the sun exposure, tea producers can significantly alter the chemical make-up and flavor of the final tea leaves.