Name: 憋尿有害嗎？| 憋尿不好嗎？ (Is it Bad to Hold our Urine? | #aumsum)
Uploaded: 2021-01-14T08:09:21.000Z
Duration: 6 min 39 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Can you guess the title of my next video?

Write your guess in the comments section below.

Right now, I'm not in a state to answer you.

Our body has various ways to get rid of unwanted waste materials.

Urine is a liquid waste consisting of unwanted materials like water, salts, urea, uric acid, etc.

The urinary system consists of two kidneys, two ureters, a urinary bladder and a urethra.

The two kidneys filter blood and produce urine.

Which flows through the ureters and starts getting collected in the urinary bladder.

When our urinary bladder starts getting full and it begins to stretch or expand.

The nerves of the bladder inform the brain to produce an urge to urinate.

Now, when we want to urinate, the bladder contracts and the urine flows out of the body through the urethra.

Once in a while, it's okay to hold our urine.

But stress and pressures of modern life make us hold our urine more often and for longer periods.

Which can have negative effects on
our health.

For example, a wet and warm bladder of urine is the perfect breeding ground for harmful bacteria.

Hence, if we don't empty the bladder regularly, then the bacteria are more likely to grow, Multiply.

Holding the urine can also cause the bladder to remain expanded or stretched for too long.

This may make it difficult for the bladder to contract normally while urinating.

As a result, the bladder will not be emptied completely which can lead to discomfort.

Sometimes, the excess urine in bladder can even flow back to the kidneys,.

Causing kidney damage or kidney infection.

In very rare cases, the bladder may even burst, risking the life of the individual.

Through nerves, our brain communicates with
our limbs.

However, when we cross our legs or sleep on an arm for very long.

We apply pressure causing the nerve pathways and its surrounding arteries to squeeze.

Hence, the nerves do not work properly and the arteries cannot supply required nutrients to the nerves.

As a result, the signals sent by our brain
do not reach the limb.

So, we say that our limb has fallen asleep.

Also, in some situations, some of these squeezed nerves stop sending signals while some fire hyperactively.

This gives us the sensation of pins and needles.

Honeybees build honeycombs to store honey, pollen, eggs, etc.

The honeycombs are built using beeswax which honeybees produce themselves.

However, honeybees produce very less amount of this wax.

Hence, honeybees required a shape that would give them maximum storage using minimum beeswax.

Now, if each cell of the honeycomb would be a circle, then there would be a lot of gaps or wasted space between cells.

So why didn't honeybees make triangular or square cells?

These shapes don't leave any wasted space.

Popular research suggests that hexagonal cells use less wax.

Provide more space as compared to triangles and squares.

This means honeybees can store more honey while using the least amount of wax.

Besides this, the overall structure is much more stable and strong.

Because everyday it bathes using red paint.

Our blood mainly consists of a liquid called plasma, red blood cells, white blood cells and platelets.

However, the color of our blood is basically because of red blood cells.

Each of the red blood cells contains hemoglobin.

When hemoglobin binds with oxygen, the interaction between them gives our blood its red color.

Moreover, like human beings, not all animals have red color blood.

This is because the blood of some animals such as octopuses, spiders, etc. has hemocyanin instead of hemoglobin.

Hemocyanin is a copper containing protein.

When hemocyanin binds with oxygen, their interaction gives the blood a blue color.

The blood of some lizards has biliverdin instead of hemoglobin which give their blood a green color.

Why is a laboratory thermometer not used to check body temperature?

Why don't you check your body temperature using a thermometer?

Please don't use a laboratory thermometer.

You won't be able to get the correct reading.

A clinical thermometer is different from a laboratory thermometer.

When we check our body temperature, the kink present in it prevents the mercury from falling back down

Thus helping the thermometer to hold the temperature recorded by it and giving us an accurate reading.

Now, in a laboratory thermometer, this kink is absent.

This is because a laboratory thermometer is meant to measures immediate temperature.

Hence, after recording our body temperature, until we check it, the mercury will fall.