Green tea has been consumed for many centuries and made from the steamed and dried leaves of the Camellia sinesis. Today, there are different types of green tea - some are more useful and beneficial than others. Read more.
In folk medicine, chamomile has long been used ease spasm and discomfort in the digestive tract. It is also used to treat a plethora of ailments: see http://medicinalplants101.blogspot.com for more details