Early Wisdom?
said it should be 'early to bed and early to rise'
though I suspect his behavior in bed
was not always exactly what he said
since, when he was our ambassador to France at well over 40
the ladies there found him open to romance as well as sporty.
And, thanks to the internet, now you and I can both know it
is advice that has often been rejected by many another poet
whether Asian, European, American, Mexican or Canadian,
since it depends on one's particular rhythm Circadian,
and thus more often on individual genes and chromosomes
than in always living life's scenes in quietly shaded homes.
HzL
5/23/16
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Quote Details: Benjamin Franklin: Early to bed and ...
Circadian rhythm - Wikipedia, the free encyclopedia
Some features of the human circadian (24-hour) biological clock. A circadian rhythm / s ɜːr ˈ k eɪ d i ə n / is any biological process that displays an ...
Life's Extremes: Early Birds vs. Night Owls | Sleep-Wake ...
How Will You Sleep Tonight? It's in Your Genes
Research finds major differences in the brains of night owls and early risers.
Are you one of those people who rises before dawn and never needs an alarm clock? Or would you happily sleep until midmorning if you could? Do you feel like you are just hitting your stride by late afternoon, or do you get the day's main tasks accomplished by lunch?
Most of us have some degree of preference for late nights or early mornings. Where an individual falls on this spectrum largely determines his or her chronotype—an individual disposition toward the timing of daily periods of activity and rest. Some of us are clearly “larks”—early risers—while others are distinctly night owls. The rest of us fall somewhere between the two.
We’re now learning that these night owl and early riser tendencies are driven to some significant degree by biological and genetic forces. Different chronotypes are associatedwith genetic variations, as well as differences in lifestyle and mood disposition, cognitive function, and risks for health problems including sleep disorders and depression.
New research has found evidence of physical differences in the brains of different chronotypes. Scientists at Germany’s Aachen University conducted brain scans of early risers, night owls, and “intermediate” chronotypes who fell in between the two ends of the spectrum—and discovered structural differences in the brains of people with different sleep-wake tendencies.
For the study, researchers observed 59 men and women—16 early risers; 20 intermediate sleepers; and 23 night owls. They found that, compared to early risers and intermediates, night owls showed reduced integrity of white matter—the fatty tissue that facilitates communication among nerve cells—in several areas of the brain. Diminished integrity of white matter in the brain has been linked to depression and disruptions of normalcognitive function.
Are Night Owls at Risk?
The cause of this difference in white-matter quality between night owls and other sleepers is not clear. Researchers speculate that the diminished integrity of white matter may be a result of the chronic “social jet lag” that characterizes the effects many night owls' sleep-wake routines—people who are disposed toward staying up late and sleeping late often find themselves at constant odds with work and school schedules that require early-morning starts. This can leave night owls chronically sleep deprived, experiencing many of the same symptoms of travel-induced jet lag, such as fatigue and daytime sleeplessness, difficulty focusing, and physical pain and discomfort.
Other research indicates that people who stay up late are at higher risk for depression, and are more prone to significant tobacco and alcohol use. They are also inclined to eat more, and to have less healthful diets than early risers or people with intermediate sleep patterns.
But it's not all bad news for night owls. Some studies have shown that people who stay up late are more productive than early risers, and have more stamina throughout the length of the day. Other research has shown that night owls display greater reasoning and analytical abilities than earlier-to-bed peers. And, on average, research shows, they achieve greater financial and professional success than those with earlier bedtimes and wake times.
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