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 4.7 / 5 (6) 0

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 not rated yet 1

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 5 / 5 (2) 0