Why Sleep Is So Critical (and What To Do if You're Not Getting Enough ZZZs) with Dr. Nancy Foldvary

Adults need 7 to 9 hours of sleep a night. Yet 30% of us are getting less than 7 hours of shut eye every night. Neurologist and sleep expert Nancy Foldvary, MD, explains exactly what a lack of essential sleep does to your body — and what help is available for common sleep disorders, from sleep apnea to insomnia.