If you're just not a morning person, science says you may never be
Being a morning (or evening) person is inborn, genetic, and very hard to change.
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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.
To understand why some people are early birds while others are night owls, we have to take into consideration the body's circadian system.
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 hormone, and every chemical in the body cycle with the daily rhythm.
This makes us our sleep habits unique and tailored.
It has been associated with higher blood pressure, body mass index, and increased calcification of the coronary artery.
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Our various biochemical signals, daily lifestyle, and genetic inclinations develop a specific chronotype in us, that is basically our overall biological response to the outside world.
These chronotypes are categorized as: Morning, Day or Night. The person with a morning chronotype will wake up early in the morning and start to feel hungry sooner than the person with a Day or Night chronotype.
The chronotypes we form are not permanent in most cases but have a rhythm of their own, spawning years, and shifting from Morning to Day and eventually, Night, based on our age.
People with chronotypes that are more towards the evening are more prone to various metabolic disorders and are likely to develop obesity, diabetes and heart disease.
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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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