Reddit 熱門提問

如果皮膚不斷脫落和再生,爲什麼年輕時保溼和避免陽光直射對皮膚有長期的幫助?
If skin is constantly shedding and being regrown, why does moisturizing and avoiding direct sunlight when you’re young help with your skin long term?
from /r/askscience
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