Gretchen Rubin explains how being alone is different than being lonely

Only on the "CBS This Morning" podcast, best-selling author Gretchen Rubin joins CBS News' Jericka Duncan to explain why people should carve out time for themselves. Rubin, who also hosts the award-winning "Happier" podcast, says human connection and strong relationships are the biggest key to happiness, but that it's also important to be comfortable with solitude.