This past week I suddenly started noticing that most of my coworkers and friends (both men and women) look much older than they really are.
While they are all in their late 20s/ early 30s, most of them have pretty deep lines, crows feet, visibly dry skin, bad posture and shape and generally not youthful physical appearance.
I wonder if this has anything to do with bad lifestyle (sun exposure, bad diet, alcohol, smoking) or if it is normal to show signs of aging as such a young age. Perhaps I look much older than I am too 
Any thought?