Analysis Version
v1
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assertion
Analysis v1
Strong Support

Getting a tan means your skin cells are being damaged by sunlight, and that damage adds up over time to cause wrinkles and skin cancer.

34
Pro
0
Against

Evidence from Studies

Supporting (1)

34

Community contributions welcome

34

UV-exposure, endogenous DNA damage, and DNA replication errors shape the spectra of genome changes in human skin

Cross-Sectional Study
Human
2021 Jan

This study found that sunlight (UV rays) causes permanent damage to skin cell DNA, even in areas not directly exposed, and this damage builds up over time—leading to aging and cancer. This matches the claim that UV exposure triggers melanin (a protective tan) but still harms DNA.

Contradicting (1)

0

Community contributions welcome

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ATM signaling delays skin pigmentation upon UV exposure by mediating MITF function towards DNA repair mode.

Computational/Algorithm Study
Human
2023 Dec

When your skin gets sunburned, this study found that your body doesn’t immediately make more melanin (tan) — it actually stops tanning for a bit to focus on fixing DNA damage first. So the claim that tanning is a direct protective response is wrong.

Similar Assertions

The cells in your skin that give you your color are especially at risk from sun damage and natural byproducts of pigment production, which can harm the cells and possibly lead to skin cancer or discoloration.

1
0
77%

Chronic ultraviolet radiation exposure is the primary etiological factor in the development of non-melanoma skin cancers, specifically basal cell carcinoma and squamous cell carcinoma, which frequently occur on sun-exposed facial regions and can result in significant structural disfigurement upon surgical excision.

60
0
76%

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