Health

Why do we rebel against bedtime?

It's late, and although you know you'll pay the price tomorrow, you start streaming another episode, browsing social media or answering emails. You know it's a bad idea—so why do you do it anyway? That's what University ...

Obstetrics & gynaecology

New mothers' sleep loss linked to accelerated aging

When new mothers complain that all those sleepless nights caring for their newborns are taking years off their life, they just might be right, UCLA research published this summer in the journal Sleep Health suggests.

Diseases, Conditions, Syndromes

Covid cases surge in Asia as Delta wreaks havoc worldwide

Indonesia, Iran and France were suffering alarming surges in coronavirus cases Tuesday, as governments raced to vaccinate populations in a bid to outpace the highly-contagious Delta variant wreaking havoc across the globe.

Ophthalmology

Cataracts: Common, and easy to treat

(HealthDay)—Many aging Americans can have their vision dimmed by cataracts, but the good news is that they're easily treated, one expert says.

Obstetrics & gynaecology

Mayo Clinic Minute: Help with hot flashes due to menopause

Vasomotor symptoms—the medical term for hot flashes—are among the most common menopause symptoms women experience. Hot flashes, along with night sweats, can be uncomfortable and disruptive. Dr. Suneela Vegunta, a Mayo ...

Health

Is Night Shift really helping you sleep better?

How often have you laid in bed scrolling through news stories, social media or responding to a text? After staring at the screen, have you ever found that it is harder to fall asleep?

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Night

Night or nighttime is the period of time when the sun is below the horizon. This occurs after dusk. The opposite of night is day (or "daytime" to distinguish it from "day" as used for a 24-hour period). The start and end times of night vary based on factors such as season, latitude, longitude and timezone.

At any given time, one side of the planet Earth is bathed in light from the Sun (the daytime) and the other side of the Earth is in the shadow caused by the Earth blocking the light of the sun. This shadow is what we call the darkness of night.

This text uses material from Wikipedia, licensed under CC BY-SA