Some studies have found that ginseng may boost the immune system. There is some evidence that one particular type of American ginseng extract might decrease the number and severity of colds in adults. Several studies in people have also shown that ginseng may lower blood sugar levels. There is some early evidence that ginseng might temporarily -- and modestly -- improve concentration and learning. In some studies of mental performance, ginseng has been combined with ginkgo.
The Fourth of July is known as Independence Day because that is the day that the Second Continental Congress adopted the full and formal Declaration of Independence. Even though we had declared that we were independent, the American Revolution was still being fought, which meant that we were still not independent.
Try This Quiz. By On 7/4/16 at 7:00 AM. Opinion Fourth of July Declaration of Independence. When we celebrate the Fourth of July with a three-day weekend vacation, picnics and fireworks, we sometimes forget the real meaning of the holiday. The quiz below provides an opportunity for you to test and refresh your civic knowledge of the landmark occasion in American history that we celebrate.