Fasting is a great way to clean out the colon, but incorporating natural juices, soups and Metamucil can keep you from getting too weak during a colon cleanse. Eliminate toxins and solid waste from the body with advice from a licensed dietitian and nutritionist in this free video on healthy eating.

Mark Mattson is the current Chief of the Laboratory of Neurosciences at the National Institute on Aging. He is also a professor of Neuroscience at The Johns Hopkins University. Mattson is one of the foremost researchers in the area of cellular and molecular mechanisms underlying neurodegenerative disorders such as Alzheimer's Disease, Parkinson's Disease, and amyotrophic lateral sclerosis.