���ӽ紫ý

Trouble sleeping is a common complaint among older folks, but what if their insomnia traces back to prehistoric times when Grandma and Grandpa were in charge of keeping the cave safe at night?

If your sleep is getting worse with age, evolution might be to blame. A study recently published in Proceedings of the Royal Society B found that humans' age-specific sleep patterns may have evolved to protect mixed-age groups from potential danger in the night. And in this scenario, the elderly members of these groups may have drawn the short straw—their restless sleep made them perfect for the night watch.

You may not look forward to sleeping less as you get older. But maybe it wouldn’t seem as bad if you knew it once played an important role in human survival.

Barbara Atkinson, the founding dean of the ���ӽ紫ý School of Medicine, is making “positive gains every day” in the hospital after suffering a “very serious” illness, university officials said Tuesday.

Poor sleep is often regarded as a modern affliction linked to our sedentary lifestyles, electric lighting and smartphones on the bedside table.

Most marijuana dispensaries in Las Vegas reported similar results during the first week of legal recreation sales: Long lines of eager customers and strong revenue.

Over the course of two decades, several thousand planets have been discovered and recorded. Most of these exoplanets look nothing like the planets in our Solar System. Dr. Steffen, a member of the science team for NASA’s Kepler mission, joins us to talk about these discoveries and what we’ve learned from them.

The U.S. Senate’s draft of a new health care bill promises to cut funding toward Medicaid expansion and cap the program’s budget. Meanwhile, Nevada this month was a signature away from creating a potentially precedent-setting law that would have opened Medicaid coverage to all state residents.

We've collected a list of our favorite 'everyday' dinner spots in the city—places where we feel at-home upon walking through the door.