By Donna Lu An artist’s impression of the water-purifying panelH.M. Cao at University of Rochester A black panel of aluminium crafted by lasers can purify water when heated by ordinary sunlight. It could eventually be used in drought-stricken areas or regions where clean drinking water is not readily available. Chunlei Guo at the University of…
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3 min read DRY MOUTH, A condition where the salivary glands does not produce enough saliva to keep your mouth lubricated, can worsen as you get older. But here’s the kicker: dry mouth is not a normal part of aging. While older adults may experience that uncomfortable dryness (especially at night), it’s likely because of
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