I'm sure you could "create" your own teas - go for it!
Gary and I drink a LOT of tea, though it's only green teas these days.
Other than specific types of herbal teas that are from mint or chamelia or whatever, almost all "tea" is from the same plant, Camellia Sinensis
The only difference between white tea, the various types of green teas, and the various types of black teas, is processing and flavoring. Black tea is fully fermented green tea. Green tea is fermented slightly more than and processed a little bit differently than white tea.
White tea is the least fermented/processed of all the "tea" types of teas (meaning not compared to some herbal teas, but compared to anything that is from camellia sinensis).
The various types of teas within the black or green category have to do with the length and type of fermentation, and flavor additives that create Jasmine green tea or Earl Grey black tea, for example.
Tea comes originally from China, and if you want a quick read on the history from the chinese perspective, here's a link: http://www.tenren.com/teahistory.html
If you are interested in the different types of tea, a quick read on fermentation is here: http://www.tenren.com/fermentation.html
Green tea has been shown to have bazzillions of health benefits. A quick search at prevention magazine turns up this list: http://find.prevention.com/vignette/...archresult.jsp
It helps boost the levels of antioxidants in your blood, so it helps fight cancer, boost your immune system, etc. It has been shown to help you lose weight - it boosts your metabolism (and not because of caffeine). It helps fight allergies, colds, etc. ...and it helps you get down those GALLONS of water you should be drinking every day!
Now that we are working again, Gary and I purchase our tea from Ten Ren. We go to the store in NYC - but because of this thread, I found out they have a site from which you can purchase stuff. www.tenren.com
. Gary and I purchase some of the higher grades of green tea, and always have King's Tea, Ti Kuan Yin, Jasmine and a good organic oolong on hand. We purchase whole loose leaf - not powder.