I feel like the older you get, the brighter your facial expressions should be lol

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In your teens or early to mid-20s, your face naturally has vitality... so even if your expression isn't great, it's somewhat covered, and people around you tend to react with a sense of "Is something wrong?"
But once you hit your 30s, if you go around frowning and looking serious, it makes your natural features look worse and makes you look older.
Of course, a bright face is good regardless of age.
Since wrinkles inevitably appear as you get older, I think it's better for both men and women to manage their facial expressions.
Even if it's not just for how others see you, it's better for your own mood as well.