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Sunlight through windows may cause sunburn due to UVA penetration, Australians need sun protection with UV index above 3 for healthy vitamin D levels.
Sunlight through windows can cause sunburn & skin damage due to UVA penetration, as glass blocks 95% of UVB rays needed for vitamin D production.
To maintain healthy vitamin D levels, Australians should spend brief periods outside without protection when UV index is 3 or above, and use sun protection when it's higher.
Vitamin D deficiency can lead to rickets, osteoporosis, & osteomalacia.
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La luz del sol a través de las ventanas puede causar quemaduras solares debido a la penetración de los rayos UVA; los australianos necesitan protección solar con un índice UV superior a 3 para tener niveles saludables de vitamina D.