Skin layers and melanin
Sunburns are caused by exposure to too much ultraviolet (UV) light.
Ultraviolet B (UVB) is associated with sunburn.
Exposure to both types of radiation is associated with developing skin cancer.
Sunlamps and tanning beds also produce UV light and can cause sunburn.
Does UVA or UVB burn?
UVA rays are considered the sun’s silent killers because, unlike UVB rays, you do not feel the effects of UVA rays damaging your skin. UVA rays are the cause of tanning, and unless you burn first, getting a tan isn’t painful—but, those unfelt UVA rays are reaching deep into skin, causing havoc in every layer.
Which is more dangerous UVA or UVB?
UVB ranges from 290 to 320 nm. With even shorter rays, most UVC is absorbed by the ozone layer and does not reach the earth. Both UVA and UVB, however, penetrate the atmosphere and play an important role in conditions such as premature skin aging, eye damage (including cataracts), and skin cancers.
Can UV lights burn you?
Health Effects. Exposure to light from transilluminators, uv germicidal lamps and crosslinkers can cause severe eye damage and skin burns from very short exposures. UV exposure to the skin causes sunburn, with blistering and peeling in severe cases.
How dangerous are UV lights?
UV-A is one of three types of UV ray. It ages the skin to cause wrinkles and breaks DNA strands within skin cells, which can lead to cancer. The lamps tested by the researchers differed in their power levels, but generally UV lamps with higher wattages put out higher levels of UV-A radiation.
Photo in the article by “Pixabay”