Learn more about health with this collection
How to create a positive work environment
Techniques for cultivating gratitude and mindfulness at work
How to find purpose in your work
The necessary amount of sleep
Most adults function best after 7-9 hours of sleep a night.
When we get less than 7 hours, we’re impaired (to degrees that vary from person to person). When sleep persistently falls below 6 hours per 24, we are at an increased risk of health problems
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Minimize screen time
Especially before bed. Phones and tablets emit light that’s skewed heavily toward the blue end of the visible spectrum and these frequencies are especially influential in human sleep cycles.
Using a “night mode,” available on some phones, is supposed to minimize that effect.
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Melatonin and sleep
Melatonin is a hormone that regulates sleep-wake cycles.
Melatonin supplements have been shown to make some people fall asleep more quickly, but they aren’t proven to increase the total time or quality of sleep.
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Polyphasic sleeping
It's based on the idea that by partitioning your sleep into segments, you can get away with less of it.
Though it is possible to train oneself to sleep in spurts instead of a single nightly block, it does not seem possible to train oneself to need less sleep per 24-hour cycle.
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Replacing sleep with caffeine
Caffeine works primarily by blocking the action of a chemical called adenosine, which slows down our neural activity, allowing us to relax, rest, and sleep.
By interfering with it, caffeine cuts the brake lines of the brain’s alertness system. Eventually, if we don’t allow our body to relax...
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How much sleep is enough
Sleep needs vary from person to person. Age, genetics, lifestyle, and environment all play a role.
According to the National Sleep Foundation, adults need 7-9 hours of sleep a night. People who sleep seven hours a night are healthier and live longer. While the guideline is...
Sleep quantity
Although eight hours is the common mention, optimum sleep can vary from person to person and from age to age.
One review that worked through 320 research articles concluded 7 - 9 hours of sleep are enough for adults. According to experts, too little or too much sleep can both have a negativ...
Why We Sleep
While even experts haven’t reached a consensus explanation for why we sleep, numerous indicators support the view that it serves an essential biological function.
In adults, a lack of sleep has been associated with a wide range of negative health consequences including cardiovascular probl...
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