We tend to try common home remedies for common ailments, because going to a professional will take a big chunk of time and money, and you might not even get in anytime soon. These classic self-treatments got a reputation because they seem to work -possibly because many ailments get better on their own with time, and the placebo effect probably helps. Sci Show looks at the research and debunks some of the more common home remedies that just don't work under rigorous study. -via Mental Floss