샤이너스
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I went to Japan with a doctor yesterday.
At the end of the conversation, we talked a little about sunscreen.
The result is...
For those in their 30s and 40s, thorough sun protection is fine because the body produces its own Vitamin D.
I heard that starting in your 50s, vitamin production slows down, so you need to get some sunlight.
That was the main point.