Chinese medicine has been using cinnamon for medicinal purposes for hundreds of years. It has been the subject of numerous studies to determine its effect on blood glucose levels. A 2011 study has shown that cinnamon, in whole form or extract, helps lower fasting blood glucose levels. More studies are being done, but cinnamon is showing promise for helping to treat diabetes.
Witch hazel is an interesting herb that I've only recently found out about, it has been used for centuries by the Native Americans though. When I was researching witch hazel I assumed that it got its name for warding off witches or something, but it actually was used as a witching stick for locating underground sources of water and or precious minerals. Witch hazel might not be considered an herb by some due to the fact it is a woody shrub, but it has very strong astringent and antiseptic properties so I just had to include it in the list of herbs along with its uses. Today you can find witch hazel in pretty much any drugstore in the form of witch hazel water (an alcohol extract of the twigs). The only problem with this is that most of the time the extract contains very little of the actual herb, and most of the effects might actually come from the alcohol itself.
In 2008, the United States Federal Trade Commission acted against companies that made unsupported claims that their products, some of which included highly toxic chemicals, could cure cancer. Targets included Omega Supply, Native Essence Herb Company, Daniel Chapter One, Gemtronics, Inc., Herbs for Cancer, Nu-Gen Nutrition, Inc., Westberry Enterprises, Inc., Jim Clark's All Natural Cancer Therapy, Bioque Technologies, Inc., Cleansing Time Pro, and Premium-essiac-tea-4less.
Teas are a great way to get the benefits of sage all you need to do is steep one teaspoon of sage in a cup of water for about 10 minutes. You can also make a pretty awesome sore throat reliever by combining sage and thyme. Take an ounce of both grind them, and cover them with 16 ounces of apple cider vinegar. Be sure to shake it periodically and let it sit for ten days before using.