2 octubre 2015
Proper lubrication is crucial to keep not only machines but also humans functioning smoothly. The mucus membranes in our mouths, eyes, stomachs and genital area help keep friction to a minimum and also protect us against environmental hazards such as chemicals and pathogens. Researchers are investigating exactly how these mechanisms work.
http://www.sciencedaily.com/releases/2015/10/151002113546.htm
