DEAR DOCTOR K: I've been suffering from insomnia for the past year or so. I've also gained 15 pounds over the same time period. Could the two be connected?
DEAR READER: I spoke about this with my colleague Dr. Stuart Quan, professor of sleep medicine at Harvard-affiliated Brigham and Women's Hospital. He confirmed that there is growing evidence of a link between obesity and insufficient sleep. The growth of this country's obesity epidemic over the past 40 years, for example, correlates with a decline in the amount of sleep reported by the average adult. And in large population-based studies, obesity has been linked to less sleep.