Nutrient deficiencies can lead to a host of health problems. We speak to the experts about the symptoms of vitamin D deficiency, and how to avoid them
from Livescience https://ift.tt/z9aJO8v
from Livescience https://ift.tt/z9aJO8v
For the precocious hunter of off-Earth life, the Drake equation is the ever-ready, go-to toolkit for estimating just how (not) lonely humans are in the Milky Way galaxy. But it's not useful. from Live Science http://bit.ly/2T8L56y
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