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Yes, it's true! The average height of a person decreases, on average, 15mm over the course of the day. This is equal to about a 1% loss of height from morning to evening.
Why does this occur. The answer is that the intervertebral discs, or spinal discs, are composed largely of water. The discs rest between the spinal bones, or vertabrae. These intervertebral disca are compressed as we stand and walk--it is our own body weight that compresses the intervertebral disc. When you sleep at night, the compressive pressure is relieved, and the discs expand again. While the difference is small, it is a fact!
Wiki User
∙ 14y ago
Anonymous
Only if they spend their day sitting or standing. People who spend the day in bed or in microgravity do not get shorter. I have measured the effect on myself. In the morning I am measurably taller, not a whole lot, but the effect is real. I assume it has to do with the compression of the cartilage between the vertibra over the course of a day.
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What time of day is it when shadows are getting shorter?
Shadows become shorter only during the morning (before noon). Shadows are longest at sunrise and sunset, when the angle with the surface is greatest.
What would happen if the earth’s rate of rotation were to decrease?
A- the day would get longer B- the year would get longer C- the day would get shorter D- the year would get shorter
What is the relationship between the seasons and the length of the day?
the days are shorter in the winter
Why is it usually warmer on a summers day then on a winters day?
During Summer, the Sun's rays have a shorter distance to travel through the atmosphere, so remain warm. During Winter, the Sun is at a lower lever and the rays travel further through the atmosphere, so there is more time for the sun's warmth to cool.
Is the day length in the north shorter or longer than the south?
The North has shorter days between the Autumnal equinox and the Spring equinox, and longer days for the other half of the year. In the South, it is the other way around. Averaged over the course of a year the day lengths are the same.
What time of day is it when shadows are getting shorter?
Shadows become shorter only during the morning (before noon). Shadows are longest at sunrise and sunset, when the angle with the surface is greatest.
Is the days shorter and nights get longer?
In the northern hemisphere, USA and UK included, during Spring the days become longer and the nights become shorter. Conversely, in the southern hemisphere, Australia, and South Africa included , during the same period the days become shorter and the nights become longer. Depending on which side of the Equator you are on , the seasons and daylight hours are reversed. During Autumn (Fall)(northern hemisphere), the whole process is reversed in both hemispheres.
What happens to the length of day as you move north of equator?
They become shorter.
What happens to the length of day as you move north of the equator?
They become shorter.
Do shadows grow shorter during the morning and lengthen during th afternoon?
When the sun is low at dawn, and low in the evening, the shadows are long. In the middle of the day, when the sun is higher, the shadows are shorter.
What is equinoxs?
it will fall on the 22nd September 2012 in the Northern Hemisphere. During an equinox the length of day and night in both hemispheres is very much the same . 12 hours day and night. After this date in the northern hemisphere the days will become shorter with the advance of winter
Why continuous darkeness in Greenland in winters?
The tilt of the Earth causes the difference in the length of night and day. As you move to the North, days become longer in summer, shorter in winter. Greenland is very far North, and the days become shorter and shorter as they near the winter solstice (around 21 December).
Why continuous darkness in Greenland in winters?
The tilt of the Earth causes the difference in the length of night and day. As you move to the North, days become longer in summer, shorter in winter. Greenland is very far North, and the days become shorter and shorter as they near the winter solstice (around 21 December).
Is there anyway to get shorter?
It is physically impossible. But if dedicated scientific work is put into it, maybe some day it could become possible. Right now, one can only grow taller, and not shorter.
What is vernal and autumnal equinox mean?
it will fall on the 22nd September 2012 in the Northern Hemisphere. During an equinox the length of day and night in both hemispheres is very much the same . 12 hours day and night. After this date in the northern hemisphere the days will become shorter with the advance of winter
Do people shrink during the day because of gravity?
They don't 'shrink' but they do get shorter. The compression of the discs in the back bone result in less height then in the morning. It returns after allowing them to get relief from the compression of gravity by sleeping.
Do you get shorter in the day and grow when you go bed?
Yes, as the day progresses the body retracts from your weight pressing on the spine . During the night it relaxes and lenghthens again.
