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Pance ear practice questions quizlet skin#

Some people think about sun protection only when they spend a day at the lake, beach, or pool.

Pance ear practice questions quizlet skin#

It’s also important to understand that some people are more likely to get skin damage from the sun, for a variety of reasons. For example, frequent sunburns in childhood may increase the risk for some types of skin cancer many years or even decades later. The pattern of exposure may also affect your skin cancer risk. Spending a lot of time outdoors for work or recreation without protective clothing and sunscreen increases your risk. People who live in areas with year-round, bright sunlight have a higher risk of skin cancer. Further information about the UV Index, as well as your local UV Index forecast, can be found on the EPA’s website at Other factors affecting UV exposureĪlong with the strength of the rays, the amount of UV exposure you get also depends on the length of time your skin is exposed, and if your skin is protected with clothing or sunscreen. The UV Index is part of many weather forecasts throughout the country. A higher number means greater risk of exposure to UV rays and a higher chance of sunburn and skin damage that could ultimately lead to skin cancer. The US National Weather Service and the Environmental Protection Agency (EPA) have developed the UV Index, which gives you an idea of how strong the UV light is in your area on any given day, on a scale from 1 to 11+. Reflection off surfaces: UV rays can bounce off surfaces like water, sand, snow, or pavement, leading to an increase in UV exposure.Cloud cover: The effect of clouds can vary, but it's important to know that UV rays can get through to the ground, even on a cloudy day.Altitude: More UV rays reach the ground at higher elevations.Distance from the equator (latitude): UV exposure goes down as you get further from the equator.This is less of a factor near the equator. Season of the year: UV rays are stronger during spring and summer months.

Time of day: UV rays are strongest in the middle of the day, between 10 am and 4 pm.

The strength of the sun’s UV rays reaching the ground depends on a number of factors, such as: (To learn more about the different types of UV rays, see Ultraviolet (UV) Radiation.) What affects UV exposure? UVB rays have more energy and are a more potent cause of at least some skin cancers, but both UVA and UVB rays can damage skin and cause skin cancer. The main types of UV rays that can affect your skin include UVA rays and UVB rays. People who get a lot of exposure to UV rays are at greater risk for skin cancer. Most of this exposure comes from the sun, but some can come from man-made sources, such as indoor tanning beds and sun lamps. Most skin cancers are caused by too much exposure to ultraviolet (UV) rays.