Time change and your health, sleeping in the dark and heart health and Amazon is now into healthcare locally, three stories ...

We break down the finishing times of the London Marathon to determine what exactly counts as 'good' (and what's better than ...

Daylight saving time — often incorrectly referred to as daylight savings time — ends Sunday, Nov. 2, which means it’s time to ...

Historical records from Europe, Africa, Asia and beyond describe how, after nightfall, families would go to bed early, then ...