It’s that time of year, again! Can you believe it? Before you get caught up in yards of wrapping paper, strings of lights, and mile-long “to-do” lists, take a moment to read this week’s roundup of research news from Children’s Hospital of Philadelphia. You’ll discover best-practices to get toddlers to sleep — and stay asleep — just in time for the holidays! Learn the identity of our sweeter-than-sugar doctor, the correlation of lower blood pressure and smoke-free policies, and the latest on Leigh Syndrome.