 The Sun Chronicle reports on a plot twist here. A portion of one of the buildings unexpectedly had to be taken down this week after a section of the roof fell off the building. Do you pop a multivitamin every day? Turns out they may not be doing as much good as you hoped they would. Researchers at the National Institutes of Health studied more than 400,000 healthy Americans over the age of 20. They found taking daily multivitamins did not help them live longer. Medical contributor Dr. Celine Gounder.