Did People in the Past Look Older?

When we look at pictures and videos of people in the past - say the 50s, 60s and 70s - don't you find that they look a lot older than people of the same age now? Why is that? What are the reasons that a 15-year-old in 1972 looks so much older than a teen of the same age today? What the heck is going on?? To see pictures of celebrities from the past who looked so much older than they really were, check out the corresponding post called "Did People in the Past Look Older?" on http://livinginthepast.substack.com