Best Answer

We are taller in the morning than in the evening because during normal activities during the day the cartilage in our knees and other areas slowly compress, but when you go to sleep and rest the cartilage goes back to normal. On average we are about 1cm taller the morning than in the evening.

The other component to this phenomenon is that the joint capsules loose some of their synovial fluid and the connective tissues around the joints tend to become compressed throughout the day from activity and trying to counter the affects of gravity.

Also, the discs of the spine do the same thing. During the night, they resorb more fluid making them thicker and the person taller. While walking or being upright during the day, they slowly lose some of this fluid and become thinner.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

We are taller in the morning than in the evening because the center of our gravity is higher in the morning.

Movement of the center of gravity:

All the skeletal muscles of the body can Isometrically contract and relax as a single unit called Unified Skeletal Muscle or USM.

We can Isometrically contract our USM towards the head or feet. Contraction of the USM towards our head moves our center of gravity higher, relaxes the inter vertebral discs, reduces the curvatures of the spine and thus increases our height. Contraction towards the feet lowers our center of gravity, compresses our inter vertebral discs and increase the curvatures of our spine.

Voluntary control of height:

We can vary our height, within limits, at will if we have control over our skeletal muscular system. We can be taller at midnight if we wish to and be dwarfer in the morning.

Normal variation of height:

Normally we are more active in the morning and thus our center of gravity would be at a higher level in the evening to enhance our mobility.

The unorthodox explanation:

This explanation may look somewhat different form conventionally held view. The reason is that in all scientific experiments on human body our mind and 'I' are bypassed. Scientifically 'I' doesn't exist. Mind too is supposed to be abstract.

For the above reason inter vertebral discs are supposed to get compressed in the evening. However, no mention is made of what structure compresses them.

This answer is:
User Avatar

User Avatar

Wiki User

15y ago

In the morning when you first get up. By the end of the day some people are up to an inch (25mm) shorter.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why we are taller in the morning than in the evening?
Write your answer...
Still have questions?
magnify glass
Related questions

How much taller are people in the morning?

Adults are approximately 1cm (2/5 inch) taller in the morning than the evening as by the evening the intervertebral discs have been compressed slightly.

Are you likely to be taller in the morning or evening?

You will be taller in the morning. During the day, and being upright, gravity will cause the body to shrike.

Are you taller in the morning?

yesAnswerYes, you are about 2-3 cm or 3/4 inches taller in the morning due to vertebral decompression which allows the spinal discs to expand overnight.AnswerYes.I'm 5'10 in the evening and at the morning i am 5'11.5.So in the morning if you had a 8-10 hours sleep you can be about 1-2 inches in the morning!

Are you taller at night or in the morning?

Were taller during morning but I don't know why.... Francis...

Why is it harder to concentrate in the evening than in the morning?

If you are finding it harder to concentrate in the evening than in the morning, then presumably you are tired after your exertions of the day, and you need to rest. Note that not everybody has greater difficulty concentrating in the evening than they do in the morning. There are morning people and there are night people. It depends upon how your life is organized, how much coffee you drink, and so forth.

Is it cheaper to set heating for two hours morning and evening or to set all day morning to evening?

Certainly it is more cheaper to set heating for two hours morning and evening rather than to set it for all day long.

What is 8 am morning or evening?

8am is morning. AM is morning whilst PM is afternoon/evening.

When do shadows gradually get taller?

Shadows gradually get taller as the sun rises higher in the sky during the morning hours and then gradually shorter as the sun descends in the afternoon and evening. This changing pattern is caused by the angle of the sunlight hitting objects, with longer shadows occurring when the light source is lower in the sky.

Why are astronuats taller in space than earth?

Reduced gravity allows the disks in the spine to expand. It is the same reason that you are taller when you first get out of bed in the morning.

How long does the morning height remains as human height is 1 cm extra in the morning than the evening?

3 cm

High tide...morning or evening?


Are mananitas sung in the morning or in the evening?

in the morning.