News tagged with sunlight exposure

The pathway to potato poisons

In 1924, Science magazine reported on a fatal case of potato poisoning: James B. Matheney of Vandalia, Illinois, had gathered about one and a half bushels of tubers, which had turned green due to sunlight exposure. Two da ...

Jul 31, 2013
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Circadian clocks in a blind fish

Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A ...

Sep 06, 2011
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Vitamin D and mental agility in elders

At a time when consumer interest in health-enhancing foods is high, Agricultural Research Service (ARS)-funded scientists have contributed to a limited but growing body of evidence of a link between vitamin D and cognitive ...

Jun 25, 2010
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Vitamin D deficiency is widespead and on the increase

A new report issued by the International Osteoporosis Foundation (IOF) and published in the scientific journal Osteoporosis International, shows that populations across the globe are suffering from the impact of low levels ...

Jun 30, 2009
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