Philip C Cheng, PHD

Tossing, turning and staring at the clock in the middle of the night? Do's and don’ts to sleep more soundly and beat insomnia.

Struggling with weight loss? A sleep researcher explains why there is a direct link between too little or too much sleep and issues with weight management.

Don't lose sleep. Shift your body’s internal clock to match the one on the wall with these 6 strategies for adjusting to Daylight Saving Time quickly.

Summer is time for vacations, outdoor fun and late-night festivities, all of which can affect sleep schedules. Tips to keep your summer shuteye on track.