I’ve noticed this in probably 80-90% of the women I’ve seen that smoke cigs/weed/drink regularly. A woman that has lived a “clean life” (probably includes not being banged by 100+ men and being on all the psych drugs) can sometimes maintain some degree of youthfulness into her early 40s especially if eating healthy/exercising/low stress (has some money). However, I see women that have lived “dirty” and they often look old at 34 or 35. Especially so at 40-42.
At 25 or 30 they likely felt invincible like nothing could touch them…but approaching those mid 30s and beyond seems to be where the lifestyle choices from 17-30 really catch up.