July 7th 2024.
As the summer season approaches, we are all reminded of the importance of protecting our skin from the sun's harmful rays. We know to put on sunscreen before heading outside for a walk, picnic, or sunbathing session, but what about when we're inside? It turns out, the sun's rays can still reach us through windows, and experts are warning about the potential skin damage that can occur even when we least expect it.
Dr. Sophie Momen, a consultant dermatologist at The Cadogan Clinic, explains that while most standard window glass blocks UVB rays (which cause sunburn), UVA rays (which can lead to premature aging and skin cancer) can still pass through. This means that even if you don't feel the burn, prolonged exposure to UVA rays through a window can cause long-term damage to your skin.
Dr. Sonia Khorana, a GP and dermatologist, adds that this is especially concerning for those who love to sit by bright windows while working or lounging. A study published in the Journal of the American Academy of Dermatology found that skin cancer is more common on the left side of the body, which researchers linked to increased UVA exposure while driving. In fact, previous research has shown that the left side of the body can receive up to six times the dose of UV radiation as the right side for those sitting on the left side of a car.
But it's not just windows that we need to be wary of. Clothing can also play a role in how much UV radiation reaches our skin. Dr. Momen explains that certain materials and weaves can allow more rays to penetrate, and recommends wearing UPF 50+ sun protective clothing for maximum coverage. Many outdoor clothing brands, such as Uniqlo and Columbia, sell UPF clothing.
While sunscreen is still important, it's not the only line of defense against the sun's rays. Dr. Khorana advises wearing sunscreen whenever you're exposed to UV rays, regardless of the weather, as they can still penetrate through cloud cover. She also recommends using extra protection, such as hats and cover-ups, when spending long periods of time outside.
It's important to note that it's UVA rays, not UVB, that can pass through glass, so when looking for a sunscreen to use while indoors, make sure it has a broad-spectrum SPF with a UVA rating. Dr. Momen also suggests adding extra coverage when outside for extended periods, especially around reflective surfaces like snow and water.
In the end, the key is to be vigilant about protecting our skin from the sun's harmful rays, whether we're indoors or outdoors. And if you have a personal experience with sun damage, we'd love to hear your story. Feel free to reach out and share by email.
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