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Around 30 to 50 percent of people sleep between the hours of 11 pm and 7 am. Another 40 percents are either slightly morning people or slightly evening people.
The body is an orchestra of organs, each providing an essential function. In this metaphor, the circadian rhythm is the conductor. The conductor makes every neurotransmitter, every hormo...
Being a morning (or evening) person is inborn, genetic, and very hard to change.
It has been associated with higher blood pressure, body mass index, and increased calcification of the coronary artery.
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Jet Lag is a debility similar to a hangover. Jet Lag derives from the simple fact that jets travel so fast they leave your body rhythms behind.
Our biological clocks are synchronized to a 24-...
Our bodies take a few days to fully adjust, depending on not only how many time zones have been crossed, but also the direction of travel.
Usually, it would take five or six days to adjust to a six-hour shift in time zone. When you travel east, your body has a shorter time to synchronize with the regular 24-hour sun cycle. When you travel west, your body has extra time to adjust.
Generally, the best way to fool your biological clock is to shift your internal rhythms before the flight.
Irregular sleep schedules and broken sleep-wake times are not just an occasional traveling phenomenon, but a wider problem due to our social lives conflicting with our sleep patterns.
Our internal body clocks are better programmed to help us sleep and wake up, according to our unique body chemistry and energy levels.
Ignoring our internal clocks in favor of the alarm clock, and following our social obligations, sacrificing on sleep, is taking its toll on our health.
As our sleep patterns shift, leading to poor or no rest, there are a bunch of diseases that become more likely:
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While we are starting to pay attention to how important sleep is, the need for dark is still mostly ignored.
Being exposed to regular patterns of light and dark regulates our circadian ...
On its own, the circadian rhythm takes almost 24 hours. Our bodies rely on the Sun to reset this cycle and keep it at 24 hours, the length of our days. Light and the dark are important signals for the cycle.
During the night, body temperature drops, metabolism slows, and the hormone melatonin rises dramatically. When the Sun comes up in the morning, melatonin has already started falling, and you wake up.
During the dark, levels of the hormone leptin (hunger control), go up. This means we do not feel hungry while low levels make us hungry.
Ans research found that sleep disruption and turning on lights lowers leptin levels which makes people hungry in the middle of the night.
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