Neurodermatitis is a skin condition that starts with a patch of itchy skin. Scratching makes it even itchier. This itch-scratch cycle causes the affected skin to become thick and leathery. You may develop several itchy spots, typically on the neck, wrist, forearm, thigh or ankle. Neurodermatitis â also known as lichen simplex chronicus â is not life-threatening or contagious. But the itching can be so intense or recurrent that it disrupts your sleep, sexual function and quality of life. Breaking the itch-scratch cycle of neurodermatitis is challenging. Treatment success depends on resisting the urge to rub or scratch the affected areas.
WHAT IS THE AURORA BOREALIS? The Aurora is an incredible light show caused by collisions between electrically charged particles released from the sun that enter the earthâs atmosphere and collide with gases such as oxygen and nitrogen. The lights are seen around the magnetic poles of the northern and southern hemispheres.
The auroras, both surrounding the north magnetic pole (aurora borealis) and south magnetic pole (aurora australis) occur when highly charged electrons from the solar wind interact with elements in the earth's atmosphere. Solar winds stream away from the sun at speeds of about 1 million miles per hour.As the electrons enter the earth's upper atmosphere, they will encounter atoms of oxygen and nitrogen at altitudes from 20 to 200 miles above the earth's surface. The color of the aurora depends on which atom is struck, and the altitude of the meeting. 1  Green-oxygen, up to 150 miles in altitude.