The Strange Link Between Weather and Wrinkles
Dermatologists have known for years that keeping skin hydrated, particularly in dry climates, keeps it more radiant and all-around healthier, since it’s less likely to break, crack, or become inflamed. But they couldn’t draw the line from desert-dry scaliness to wrinkle formation until now. A group of Japanese scientists put the theory to the test, asking volunteers to smile in a room that had a humidity level of either 10 percent or 80 percent, and using tracking technology to see how the expression caused their skin to fold. Sure enough, the smiling faces of those in the low-humidity conditions were stiffer, and their skin folds were more intense, not just as they smiled but afterward, too.
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