Working night shifts can accelerate biological aging and directly impact your physical appearance. Disrupted circadian rhythms elevate stress (cortisol) and lower restorative melatonin, which slows skin repair and causes dullness, under-eye circles, and premature wrinkles.
I've worked nights in Australia off and on for 3 decades. It's why skin doesn't look my age. 10 years of unshielded outdoor work in Oz is like 40 years of Northern hemisphere UV. The sun here cooks you.