UVB
Midrange solar radiation
UVB is ultraviolet B radiation—the portion of the sun's ultraviolet spectrum that causes sunburn and contributes to skin cancer.
UVB rays are partially blocked by the ozone layer and don't penetrate glass.
Sunscreens are rated by their SPF, which measures protection against UVB.
Compare UVA, which penetrates deeper but burns less.
Immune system attacks skin cells
- vitiligoMelanocyte-loss skin condition
- eczemaInflammatory skin disorder
- narrowbandLimited frequency transmission
- dermatologyStudy of skin ailments
light therapy · treatment · light box · dosimetry · skin conditions · therapeutic
UV-induced skin inflammation
- erythemaCutaneous vascular flushing
- skin cancerMalignancy of the dermis
- melanomaAggressive pigment-cell cancer
- basal cell carcinomaEpidermal malignancy, rarely metastatic
photoaging · DNA damage · keratitis · mutagenesis · carcinogenesis · blistering · peeling · redness
UV-blocking skin cream
- SPFUltraviolet defense measure
- sunblockUV-protective skin cream
- ozone layerAtmospheric UV filter
- protective clothingGarments worn for safety
sunglasses · shade · zinc oxide · titanium dioxide · broad-spectrum · reapplication · UPF · hats
Combining parts into whole
- ricketsNutritional bone-weakening illness
- osteoporosisDisease weakening skeletal structure
- bone healthCondition of bones
- deficiencyLack of something needed
sunlight exposure · photosynthesis · 7-dehydrocholesterol · fortification · supplement · endocrine · metabolism · immunity
psoriasis
Immune system attacks skin cells
- vitiligoMelanocyte-loss skin condition
- eczemaInflammatory skin disorder
- narrowbandLimited frequency transmission
dermatology · light therapy · treatment · light box · dosimetry · skin conditions · therapeutic
sunburn
UV-induced skin inflammation
- erythemaCutaneous vascular flushing
- skin cancerMalignancy of the dermis
- melanomaAggressive pigment-cell cancer
basal cell carcinoma · photoaging · DNA damage · keratitis · mutagenesis · carcinogenesis · blistering · peeling · redness · inflammation
sunscreen
UV-blocking skin cream
- SPFUltraviolet defense measure
- sunblockUV-protective skin cream
- ozone layerAtmospheric UV filter
protective clothing · sunglasses · shade · zinc oxide · titanium dioxide · broad-spectrum · reapplication · UPF · hats · umbrellas
synthesis
Combining parts into whole
- ricketsNutritional bone-weakening illness
- osteoporosisDisease weakening skeletal structure
- bone healthCondition of bones
deficiency · sunlight exposure · photosynthesis · 7-dehydrocholesterol · fortification · supplement · endocrine · metabolism · immunity · phosphorus
- light spectrumvisible spectrum, spectrum, sunlight, visible light, white light
- sun protectionshade, SPF, umbrella, sunblock, shades
- UV lightUVC, ultraviolet, black light, blacklight, tanning lamp
UVBinfrared
Heat-bearing electromagnetic waves
visible light · radio waves · infrared radiation · microwaves · gamma rays
- UVB lightMedium-wave solar radiation
- UVB protectionGuard against burning radiation