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Light skin provides better absorption qualities of ultraviolet radiation, which helps the body to synthesize higher amounts of vitamin D for bodily processes such as calcium development. [ 2 ] [ 11 ] On the other hand, light-skinned people who live near the equator , where there is abundant sunlight , are at an increased risk of folate depletion.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Excessive exposure to ultraviolet rays has negative health effects, including sunburn. Some people tan or sunburn more easily than others. This may be the result of different skin types and natural skin color, and these may be a result of genetics. [2] [3] The term "tanning" has a cultural origin, arising from the color tan.
Also, seek medical attention if your sunburn isn’t getting better after a week, Dr. Reddy says. Head to the emergency room if you have severe pain, fever, chills, nausea, or vomiting, she adds.
Debiasing can occur within the decision maker. For example, a person may learn or adopt better strategies by which to make judgments and decisions. [2] [4] Debiasing can also occur as a result of changes in external factors, such as changing the incentives relevant to a decision or the manner in which the decision is made. [5]
A woman at the Iowa State Fair wears a backless dress revealing her swimsuit tan lines . A tan line is a visually clear division on the human skin between an area of pronounced comparative paleness relative to other areas that have been suntanned by exposure to ultraviolet (UV) radiation or by sunless tanning.
There are two ways that people make decisions on a daily basis. They can either make decisions based on their gut reaction, or they can make decisions by analyzing and weighing the outcomes. [9] It is easier to make a careful and thought-out decision if there are fewer factors to consider.
Based on this foresight, different courses of action can be formulated in order to influence what will happen. Decisions are an important part of deliberation. They are about comparing alternative courses of action and choosing the most favorable one. [66] [22] Decision theory is a formal model of how ideal rational agents would make decisions.