Green tea contains 2% to 4% caffeine which affects thinking and alertness, increases urine output, and may improve the function of brain messengers important in Parkinson's disease. It also contains antioxidants and other substances that might help protect the heart and blood vessels. Green tea is safe for most adults. Green tea extract seems to be safe for most people for short-term use. In some people, green tea can cause stomach upset and constipation. Green tea extracts have been reported to cause liver problems. Too much green tea, such as more than five cups per day, can cause side effects because of the caffeine.
Bore (engine) The Bore or cylinder bore is a part of a piston engine. The bore also represents the size, in terms of diameter, of the cylinder in which a piston travels. The value of a cylinders bore, and stroke, is used to establish the displacement of an engine. The term bore can also be applied to the bore of a locomotive cylinder or steam engine pistons.
Buy the mug. 2. bear. The most common definition of a bear is a man who is hairy, has facial hair, and a cuddly body. However, the word Bear means many things to different people, even within the bear movement. Many men who do not have one or all of these characteristics define themselves as bears, making the term a very loose one.