Most people get sun damage through prolonged exposure to ultraviolet (UV) radiation from the sun.
UV radiation is a form of electromagnetic radiation emitted by the sun and is invisible to the naked eye. There are two main types of UV radiation that reach the Earth's surface: UVA and UVB.
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Direct Sun Exposure: Spending time outdoors during peak sun hours (usually between 10 a.m. and 4 p.m.) without adequate sun protection exposes the skin to direct UV radiation. Activities such as sunbathing, outdoor sports, gardening, and leisurely walks can result in sun damage if proper precautions are not taken.
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Unprotected Skin: Failure to use adequate sun protection, such as sunscreen, protective clothing, and hats, leaves the skin vulnerable to UV radiation. Even brief exposure to the sun without protection can lead to sunburn and long-term damage.
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Recreational Activities: Participating in outdoor recreational activities, such as hiking, swimming, and skiing, exposes the skin to higher levels of UV radiation, especially at higher altitudes where UV intensity is greater.
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Tanning Beds and Lamps: Indoor tanning devices emit artificial UV radiation, which can cause sun damage similar to natural sunlight. Regular use of tanning beds or lamps increases the risk of skin cancer and accelerates the aging process of the skin.
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Occupational Exposure: Certain occupations require prolonged outdoor work, increasing the risk of sun damage for individuals in these professions. Examples include construction workers, farmers, landscapers, and lifeguards.
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Reflection: Surfaces such as water, sand, snow, and concrete reflect UV radiation, intensifying sun exposure and increasing the risk of sunburn and skin damage. This phenomenon, known as "reflected UV," can occur even in shaded areas.
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Cumulative Exposure: Sun damage accumulates over time with repeated exposure to UV radiation. Even small amounts of daily sun exposure, such as walking to work or running errands, can contribute to cumulative damage over months and years.
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Lack of Awareness: Many people underestimate the importance of sun protection or are unaware of the risks associated with UV exposure. This lack of awareness may lead to inadequate sun protection practices and increased susceptibility to sun damage.
Overall, most people get sun damage through a combination of direct and indirect exposure to UV radiation from the sun, as well as from artificial sources such as tanning beds.