“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.
05/12/2022 9:28 AM

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Biology Objective Questions On Different Branches🟢Cell Biology Objective Questions (कोशिका एवं कोशिका विभाजन का वस्तुनिष्ठ प्रश्न)🟢Objective Questions and Answers: Animal Tissue(जन्तु ऊतक) 🟢Objective Questions and Answers Digestive system(पाचन-तंत्र) 🟢Objective Questions and Answers Human Blood (मानव रक्त) Part-1🟢Objective Questions and Answers Human Heart (मानव हृदय) 🟢Objective Questions and Answers Excretion system (उत्सर्जन तंत्र) 🟢Objective Questions and Answers Nervous system (तंत्रिका तंत्र) 🟢Objective Questions and Answers Skeleton system (कंकाल तंत्र)🟢 Objective Questions and Answers Endocrine system (अंतःस्रावी तंत्र)🟢Objective Questions on Mineral Resources of India and World (भारत और विश्व के खनिज संसाधन)🟢MCQ On Energy Resources (ऊर्जा संसाधन वस्तुनिष्ठ प्रश्न)🟢Objective Question on Industry of India (भारत के उद्योग)🟢Objective Question on Multipurpose Projects of India (भारत के बहुउद्देशीय परियोजना)🟢Objective Question on Rivers of India (भारत की नदियाँ)🟢Objective Question on National Park and Wildlife Sanctuary in India(राष्ट्रीय उद्यान तथा वन्य जीव अभयारण्य)🟢Objective Questions on Soils of India (भारत की मिट्टियाँ)🟢Objective Questions on Agriculture of India (भारत की कृषि)🟢Objective Questions on Indian Mountains and World Mountains (भारतीय पर्वत और विश्व के पर्वत)🟢Objective Questions on Natural Vegetation of India and World

“The Knowledge Library”

Knowledge for All, without Barriers…

 

An Initiative by: Kausik Chakraborty.
Biology Objective Questions On Different Branches🟢Cell Biology Objective Questions (कोशिका एवं कोशिका विभाजन का वस्तुनिष्ठ प्रश्न)🟢Objective Questions and Answers: Animal Tissue(जन्तु ऊतक) 🟢Objective Questions and Answers Digestive system(पाचन-तंत्र) 🟢Objective Questions and Answers Human Blood (मानव रक्त) Part-1🟢Objective Questions and Answers Human Heart (मानव हृदय) 🟢Objective Questions and Answers Excretion system (उत्सर्जन तंत्र) 🟢Objective Questions and Answers Nervous system (तंत्रिका तंत्र) 🟢Objective Questions and Answers Skeleton system (कंकाल तंत्र)🟢 Objective Questions and Answers Endocrine system (अंतःस्रावी तंत्र)🟢Objective Questions on Mineral Resources of India and World (भारत और विश्व के खनिज संसाधन)🟢MCQ On Energy Resources (ऊर्जा संसाधन वस्तुनिष्ठ प्रश्न)🟢Objective Question on Industry of India (भारत के उद्योग)🟢Objective Question on Multipurpose Projects of India (भारत के बहुउद्देशीय परियोजना)🟢Objective Question on Rivers of India (भारत की नदियाँ)🟢Objective Question on National Park and Wildlife Sanctuary in India(राष्ट्रीय उद्यान तथा वन्य जीव अभयारण्य)🟢Objective Questions on Soils of India (भारत की मिट्टियाँ)🟢Objective Questions on Agriculture of India (भारत की कृषि)🟢Objective Questions on Indian Mountains and World Mountains (भारतीय पर्वत और विश्व के पर्वत)🟢Objective Questions on Natural Vegetation of India and World

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

Facts about Brains

 

1. The human brain grows three times its size by your first birthday!

Your brain starts out like the rest of you – really small!

By the time you’re one year old, your brain will have grown three times its size. It isn’t until you’re 25 that your brain reaches its full size.

2. The human brain gets smaller as we get older

When you’re about 40, your brain starts to shrink.

But there’s no need to tell a grown-up they’re getting dumber.

Luckily for us all, there’s no evidence a bigger brain is any more clever than a smaller brain, and vice versa.

3. Brain freezes are called sphenopalatine ganglioneuralgia

And it’s a warning signal.

A brain freeze happens when you eat or drink something that’s too cold, like an ice lolly or a slushy.

It’s not actually your brain that gets cold but blood vessels and arteries in the very back of the throat.

The sensation is a warning signal. It’s your brain telling you to stop what you are doing to prevent any sudden changes to the temperature in the brain.

4. Your brain is fat

About 60% fat actually – the fattest organ in a healthy body!

5. Dreams are a combination of imagination and physical conditions in the brain

Dreams are proof that your brain is working even when you are sleeping.

The average human has about 4-7 dreams per night, even if you can’t remember them all.

There’s several reasons why we dream. Our imagination is a part of it, but so are physical conditions like how healthy the connections in our brains are and even how warm or cold we are.

6. Multitasking is impossible

Rather than doing two things at once, your brain actually switches between tasks.

If you do something else, or if something distracts you, that’s known as a ‘context switch’ and it can take your brain up to 30 minutes to get back into the concentrated state it was before you changed tasks.

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7. The human brain contains over one hundred billion neurons

This is about the same as the number of stars in the Milky Way galaxy.

These are connected by trillions of connections but only take up about 10% of your brain.

However…

8. We use more than 10% of our brain

You might have heard the myth that we’re really bad at using our brains. That’s totally untrue!

Like your body, most parts are active over the course of the day. We just use different bits at different times.

9. Short term memory is about a-minute-and-a-half

This has to do with your brain’s capacity for holding small amounts of information.

Think of your brain like it has two buckets: easy access and deep access.

The brain keeps information you’ll need again quickly in for easy access but only does so for about a minute and a half.

If you know you’ll need that information a lot, your brain stores it somewhere else which can mean it’ll take longer to retrieve.

10. The brain can’t feel pain

Finally, your brain can’t feel anything!

There are no pain receptors in the brain itself.

Surgery can be done on the brain and technically the brain does not feel that pain.

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