Sun Damage/Overexposure

Sun Damage/Overexposure: Overview

Part of the sun's energy that reaches earth is composed of rays of invisible ultraviolet (UV) light.  When ultraviolet light rays (UVA and UVB) enter the skin, they inflict both visible and invisible damage to the skin cells.

Signs and Symptoms

Sunburn is a visible type of damage, which appears just a few hours after sun exposure.  In many people, this type of damage also causes tanning.  Freckles, which occur in people with fair skin, are usually due to sun exposure.  Freckles are nearly always a sign that sun damage has occurred, and therefore show the need for sun protection.

Of the invisible damage to skin cells, some is repaired but some adds up year after year.  After 20 to 30 years or more, the built-up damage appears as wrinkles and age spots.  Although window glass blocks UVB light, UVA rays are able to pass through it.

Treatment and Prevention

Susceptible persons (light skinned, easily burned) playing or working outside in strong sunlight should be protected by clothing or sunscreen.

Complications

Sun exposure during youth is a risk factor for certain skin cancers, including melanoma.  Chronic sun exposure is also associated with squamous cell carcinoma (SCC) and basal cell carcinoma (BCC).  Severe burns, especially those that blister, increase the risk.

Conditions that suggest Sun Damage/Overexposure:

Skin-Hair-Nails

Keratoses often suggests Sun Damage/Overexposure Keratoses

Because risk increases according to total lifetime sun exposure, older people are much more likely to develop actinic keratoses.

Concern Over Wrinkled Skin often suggests Sun Damage/Overexposure Concern Over Wrinkled Skin

Of all factors that contribute to wrinkle formation, none surpasses the destructive force of excessive sun exposure.  Shunning the two distinct yet equally harmful UV rays – A and B – is the first step to maintaining youthful skin.  UVB rays are responsible for visible sunburn, yet UVA rays are just as damaging, even though they cause little skin redness.  This type of radiation penetrates the skin, causing cellular damage that accumulates slowly over a period of time.  UVA rays induce the formation of free radicals, which attack the skin's lipids.  The resulting damage gives rise to visible signs of aging such as wrinkles and leathery skin.

Risk factors for Sun Damage/Overexposure:

Environment / Toxicity

Personal Background

Counter-indicators

Symptoms - Environment

Sun Damage/Overexposure can lead to:

Tumors, Malignant

Recommendations for Sun Damage/Overexposure:

Botanical

Nutrient

Preventive measures against Sun Damage/Overexposure:

Botanical

Green Tea may help prevent Sun Damage/Overexposure Green Tea

Drinking four or more cups of green tea each day may help stave off skin cancer.  This substance could be similarly effective if incorporated into skin care creams, but the quantity and consistency of EGCG (active compound found in green tea) should be questioned.

KEY

Strong or generally accepted link: often suggests; often increases risk of; often leads to
Strong or generally accepted link:
often suggests; often increases risk of; often leads to
Definite or direct link: increases risk of
Definite or direct link:
increases risk of
Strong counter-indication: often decreases risk of
Strong counter-indication:
often decreases risk of
May be useful: may help with; may help prevent
May be useful:
may help with; may help prevent