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How does sunscreen work, and what does SPF, UVA and UVB mean?
Evening Standard via Yahoo News Singapore· 3 days agoThe number represents how much UVB it allows to reach your skin. UVB rays primarily affect the outer...
Astronauts Will Be Will Be Stuck in Space for at Least a Week Longer amid Boeing's Starliner Issues
People via Yahoo News Singapore· 7 days ago"You know, safety is in most part of our mind...