Why do we cry?
It’s normal to cry when you feel upset and until the age of twelve boys cry just as often as girls. But when you think about it, it is a bit strange that salty water spills out from the corners of your eyes just because you feel sad.
One professor noticed people often say that, despite their blotchy faces, a good cry makes them feel better. So he did an experiment where people had to breathe in over a blender full of onions that had just been chopped up. Not surprisingly this made their eyes water. He collected the tears and put them in the freezer. Then he got people to sit in front of a very sad film wearing special goggles which had tiny buckets hanging off the bottom, ready to catch their tears if they cried. The people cried, but the buckets didn’t work and in the end he gathered their tears in tiny test tubes instead.
He found that the tears people cried when they were upset contained extra substances, which weren’t in the tears caused by the onions. So he thinks maybe we feel better because we get rid of these substances by crying and that this is the purpose of tears.
But not everyone agrees. Many psychologists think that the reason we cry is to let other people know that we need their sympathy or help. So crying, provided we really mean it, brings comfort because people are nice to us.
Crying when we’re happy is a bit more of a mystery, but strong emotions have a lot in common, whether happy or sad, so they seem to trigger some of the same processes in the body.
Why our brain’s storage capacity is amazing:
An adult’s brain only weighs about 1.4 kilograms, but it’s made up of about 100 billion microscopic neurons. Each of those neurons looks like a tiny branching tree, whose limbs reach out and touch other neurons. In fact, each neuron can make between 5,000 and 10,000 connections with other neurons — sometimes even more. That’s more than 500 trillion connections! A memory is essentially a pattern of connections between neurons.
Every sensation that you remember, every thought that you think, transforms your brain by altering the connections within that vast network. By the time you get to the end of this sentence, you will have created a new memory, which means your brain will have physically changed.
Why Media Literacy is important:
Newspapers don’t really go out and find the news: they decide what gets to count as news. The same goes for television and radio. And you might disagree with their decisions! (For example, journalists are often accused of focusing on bad news and ignoring the good, making the world seem worse than it is.)
The important thing to remember, whenever you’re reading or watching the news, is that someone decided to tell you those things, while leaving out other things. They’re presenting one particular view of the world — not the only one. There’s always another side to the story.
Why we will always need to read:
Some people might tell you that books are no longer necessary now that we have the internet. Don’t believe them. Books help us know other people, know how the world works, and, in the process, know ourselves more deeply in a way that has nothing to with what you read them on and everything to do with the curiosity, integrity and creative restlessness you bring to them.
Books build bridges to the lives of others, both the characters in them and your countless fellow readers across other lands and other eras, and in doing so elevate you and anchor you more solidly into your own life. They give you a telescope into the minds of others, through which you begin to see with ever greater clarity the starscape of your own mind.
And though the body and form of the book will continue to evolve, its heart and soul never will. Though the telescope might change, the cosmic truths it invites you to peer into remain eternal like the Universe.
In many ways, books are the original internet — each fact, each story, each new bit of information can be a hyperlink to another book, another idea, another gateway into the endlessly whimsical rabbit hole of the written word. Just like the web pages you visit most regularly, your physical bookmarks take you back to those book pages you want to return to again and again, to reabsorb and relive, finding new meaning on each visit — because the landscape of your life is different, new, “reloaded” by the very act of living.