A doctor has revealed a mathematic formula that ensures you wake-up feeling ready for the day, after being 'obsessed with ...

Atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

Puza says that a simple math formula can reveal your “ideal bedtime” so you wake up feeling your best — and it’s not just about hitting the sack earlier. “Does your nap feel more restful than a full ...