#BigThink 🤩

Why do we cry from happiness?

Our autonomic nervous system consists of sympathetic and parasympathetic. One part is responsible for "fighting" and the other for "relaxing" respectively. It's the sympathetic nervous system that kicks in during stress, such as by increasing heart rate. And the parasympathetic system, with its calming function, is directly connected with the lacrimal glands.

When we experience intense happiness, our heart rate increases. And the emotion is so strong that our body cannot recognize it. So our rapid heartbeat activates the parasympathetic system, sending a signal to the lacrimal glands, and we start crying.

That is, the body simply can't tell the difference between a strong positive emotion and a negative one.

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#psychology

Learning is not just a process 📝

There is no great excess of cells which can be reserved as the seat of special memories.

163/365✅

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#vital ❗️

The Superpower of sunglasses🕶️☀️

If your budget allows, I recommend having a couple of different pairs

167/365✅

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#invention

Oxygen

The first gas separated and identified as a unique element.

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#health

Under PRESSURE 😰🤬

Stress is something that affects us all – so how can we deal with it in a better way? H&W investigates...

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#BigThink 🤩

Is it true that a piece of paper can only be folded seven times?

Yeah, if we're talking about an A4 sheet of office paper.

An A4 sheet of paper has an area of 600 cm² and a thickness of 0.01 cm. Each time it is folded, the thickness doubles and the area is halved, even a little more. With seven folds, the area and thickness will change about 128 times.

At the seventh stage, you will have to make a considerable effort to bend in half a stack almost a centimeter thick and measuring 2 × 4 cm. In this case a 2x2x2 cm cube is formed and its further folding simply makes no sense.

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