Related by context. Frequent words. (Click for all words.) 70 UV radiation 67 UV rays 61 UVB 60 ultraviolet radiation 59 ultraviolet rays 58 UV light 57 vitamin D 57 sunscreens 57 sunburns 57 vitamin D deficiency 56 UVB rays 55 sunburn 55 wear sunscreen 53 vitamin D. 53 Vitamin D 53 UV 52 sunscreen 52 skin cancers 50 ultraviolet light 49 Vitamin D deficiency 49 gum disease 49 sunlight 49 calcium intake 49 Skin Cancer 48 tanning 48 caffeine intake 48 dietary intake 48 melanin 48 vitamin E 47 reflectivity 47 oxidative damage 47 ultraviolet 46 indoor tanning 46 sun 46 electromagnetic radiation 46 sun rays 46 tanning beds 46 vitamin D supplements 46 pigmentation 46 melanoma 46 melanomas 46 melanoma skin 45 exposure 45 ionizing radiation 45 oxidation 45 cognitive impairment 45 antioxidants 45 HPV infection 44 harmful effects 44 overexposure 44 vitamin C 44 cataracts 44 melatonin 44 thyroid function 44 fluid intake 44 tooth enamel 44 oxidative stress 44 calorie restriction 44 folate 44 radiation exposure 43 toxicity 43 malignant melanoma 43 lycopene 43 bleaching 43 cognitive decline 43 calcium 43 sunbeds 43 periodontal disease 43 passive smoking 43 cosmic rays 42 endometrial cancer 42 carotenoids 42 Vitamin E 42 brightness 42 caloric intake 42 acrylamide 42 relative humidity 42 eczema 41 radiation 41 knee osteoarthritis 41 sunbed 41 tans 41 cortisol levels 41 allergic reactions 41 omega 3s 41 heart disease 41 Sunscreen 41 selenium 41 secondhand smoke 41 tooth decay 41 precancerous lesions 41 EGCG 41 lutein 41 adenomas 41 nutritional deficiencies 41 childhood leukemia 41 wrinkling 41 kidney function 40 latitudes 40 sunblock 40 basal cell carcinoma