Sun exposure and longevity: a blunder involving immortal time
نویسندگان
چکیده
منابع مشابه
Addressing the health benefits and risks, involving vitamin D or skin cancer, of increased sun exposure.
Solar radiation is the main cause of skin cancers. However, it also is a main source of vitamin D for humans. Because the optimal status of vitamin D protects against internal cancers and a number of other diseases, a controversy exists: Will increased sun exposure lead to net health benefits or risks? We calculated the relative yield of vitamin D photosynthesis as a function of latitude with a...
متن کاملSun Exposure and Psychotic Experiences
OBJECTIVE Sun exposure is considered the single most important source of vitamin D. Vitamin D deficiency has been suggested to play a role in the etiology of psychotic disorders. The aim of the present study was to evaluate the association between sun exposure and psychotic experiences (PEs) in a general population sample of Swedish women. METHODS The study population included participants fr...
متن کاملSun exposure, sun protection and sunburn among Canadian adults.
BACKGROUND Ultraviolet radiation (UVR) exposure and a history of sunburn are important risk factors for skin cancer. Sunburn is more common among men, younger age groups, and people in higher income households. Sun protection measures also vary by sex, age, and socioeconomic characteristics. Associations between ambient UVR and sunburn and sun safety measures have not been quantified. DATA AN...
متن کاملSun Exposure, Sun-Related Symptoms, and Sun Protection Practices in an African Informal Traditional Medicines Market
Informal workers in African market trade have little formal protection against sun exposure. We aimed to examine sun exposure, sun-related symptoms, and sun protection practices in an informal occupational setting. Trained fieldworkers asked 236 workers in the Warwick Junction market about their workplace, skin and eye sensitivity and skin colour, symptoms faced at work during the summer due to...
متن کاملSun exposure measurements in populations.
Measuring ultraviolet (UV) exposure in human populations is a complex task. The dominant source of ultraviolet radiation for humans is sunlight, which is always a mix of both ultraviolet A (UVA, usually 320– 400 nm) and ultraviolet B (UVB, 320–280 nm). Ultraviolet C ( 280 nm) is filtered by the atmosphere and does not reach the earth’s surface. Researchers cannot separate the individual effects...
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ژورنال
عنوان ژورنال: International Journal of Epidemiology
سال: 2014
ISSN: 0300-5771,1464-3685
DOI: 10.1093/ije/dyu108