UV radiation and sunburn - Deepstash

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What Is Ultraviolet Light? | Live Science

UV radiation and sunburn

A suntan is a reaction to exposure to UVB rays. When the body senses sun damage, it sends melanin, a pigment in the body, to absorb UV light and protect the body from more damage, resulting in a darkened skin.

Continued exposure to UV radiation can damage the body's DNA. When the body senses this destruction, it floods the area with blood and inflammation to help with the healing process. Sometimes the cells with DNA mutated by the sun's rays turn into problem cells, known as skin cancer.

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Misophonia is characterized by strong negative emotions such as anger and anxiety in response to everyday sounds other people make. These sounds include humming, chewing, t...

Misophonia and brain particularities

Scientists do not fully understand misophonia but suspect it's caused by the way some people's brains process particular sounds and react to them.

Some studies found that the brains of people with misophonia showed hyperactivation of the salience network, a group of brain areas that direct our attention to important things in our surroundings. Trigger sounds send the salience network into an overdrive. Researchers found these brain areas are structurally more robust in people with misophonia.

Calming a misophonic brain

There's a lot of similarity between people who experience misophonia, but also a lot of diversity.

Therapists use a variety of techniques that is often based on the symptoms. Those who experience fear and anxiety may respond to exposure-based treatments. Those who experience anger can learn to manage their distress through distraction or relaxation techniques.

My Red Is Your Blue
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About 1 per cent of American men suffer from red-green colour blindness.

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The Calculations Of Light
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Colour Is A Private Sensation
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Asteroids are what's left after the formation of our solar system from billions of years ago.

It is believed that the reason why they were formed were because of the birth of Jupiter. Its birth hindered any planetary bodies to form in the space between Mars and Jupiter, which resulted to the small objects that were present to crash onto each other and fragment themselves.

The two theories that back this up are the Nice model and the Grand Tack.

Categorizing asteroids

The different types of asteroids are:

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  • Trojan asteroids - found outside the main belt; usually orbits larger planets
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  • The C-type - carbonaceous asteroids
  • The S-type - silicaceous asteroids
  • The M-type - metallic asteroids
  • The V-type - has a basaltic and volcanic crust