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Human migration patterns connected to vitamin D deficiencies today

A new study in the Oxford Economic Papers finds that migration flows the last 500 years from high sunlight regions to low sunlight regions influence contemporary health outcomes in destination countries. The researchers here noted that people s ability to synthesize vitamin D from sunlight declines with skin pigmentation, and that vitamin D deficiency is directly associated with higher risk of mortality, from illnesses including cardiovascular disease, type 1 and type 2 diabetes, hypertension, and certain cancers. Recent research even .finds that vitamin D affects the severity of COVID-19. Researchers here focused on groups from high sunlight regions that migrated to low sunlight regions between 1500 and today. The resulting population shifts caused the risk of vitamin D deficiency to rise substantially. The researchers explored the aggregate health consequences of such migration over a long historical perspective.

Human migration has resulted in spike in vitamin D deficiencies

Human migration has resulted in spike in vitamin D deficiencies Joe Pinkstone For Mailonline © Provided by Daily Mail MailOnline logo Human migration over the last 500 years from sunny places to colder, darker more northerly homes has led to a surge in the number of people suffering from vitamin D deficiencies, a new study reveals.  Academics created a computer model to calculate the difference in exposure to UV rays from the sun in both a person s ancestral and current location.  They found going to places with lower levels of sunlight can result in vitamin D deficiency, which is directly associated with higher risk of mortality from illnesses including cardiovascular disease, diabetes, hypertension, and certain cancers. 

صدى البلد: سعداء الحظ في زمن كورونا أصحاب هذه الفصيلة من الدم أقل عرضة للإصابة بالفيروس

صدى البلد: سعداء الحظ في زمن كورونا أصحاب هذه الفصيلة من الدم أقل عرضة للإصابة بالفيروس
elbalad.news - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from elbalad.news Daily Mail and Mail on Sunday newspapers.

Expanding ocean anoxic zones and periods of geologic upheaval -- Science & Technology -- Sott net

Mon, 21 Dec 2020 13:45 UTC The research team lowers a particle collection device into waters off the coast of Manzanillo, Mexico. Credit: Morgan Raven With no dissolved oxygen to sustain animals or plants, ocean anoxic zones are areas where only microbes suited to the environment can live. You don t get big fish, said UC Santa Barbara biogeochemist Morgan Raven. You don t even get charismatic zooplankton. But although anoxic oceans may seem alien to organisms like ourselves that breathe oxygen, they re full of life, she said. These strange ecosystems are expanding, thanks to climate change a development that is of concern for fisheries and anyone who relies on oxygen-rich oceans. But what piques Raven s interest is the changing chemistry of the oceans the Earth s largest carbon sink and how it could move carbon from the atmosphere to long-term reservoirs like rocks.

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