Wrong.
The sun’s rays can damage your skin regardless of whether you burn or not. People with a history of sunburn may be at a higher risk of skin diseases and cancers, but all of us become at risk as soon as we expose ourselves to the sun, starting from just a few days old. When sun rays (both UVA and UVB) penetrate our skin, damage is done every single time your skin is exposed, whether it’s your hand through your windshield when driving or your full body during a day at the beach. In fact, most skin cancers start from the most exposed parts of the body: face, neck, hands, arms, and feet. We are all born with a different “sun capital,” which we may or may not run out of at any point in our lives: our skin accumulates the negative effects of the sun’s rays until it just can’t anymore because your sun capital has been reached. Your body will first show signs such as premature aging of the skin, brown spots, and thinning of the skin (watch out for your hands, neck, and face). From there, the largest organ of your body (your skin) decreases drastically in immune function, leading to pre-cancerous (actinic keratosis) and cancerous (basal cell carcinoma, squamous cell carcinoma, and melanoma) skin lesions. Whether you burn or not doesn’t change this process; a sunburn is the reaction your skin has to “clean up the mess” of too much UV penetrating your skin: your blood vessels dilate to increase blood flow and bring immune cells to the skin, thus the redness and inflammation.
This may be scary, but it doesn’t mean you shouldn’t enjoy the sun; always wear sun protection on every part of your skin that isn’t covered.
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