Hi, I see people are giving you a hard time, and that you mentioned you're a non-native English speaker.

The article was very nice, but you might be a bit more open to feedback. When I saw the title in my email about "old people," I assumed you were talking about people in their 70s and 80s.

When you mentioned your aunt was "over 50," I hoped you meant she was in her 70s or 80s, but I see in the comments you still want to call people (you mention your parents) in their 50s "elderly."

So for future reference, this is the general categorization (in the US, at least) for age:

Young adults: 20-40

Middle age: 40-60

Old age: 60-80

Elderly or "old old age"): 80-100

My wife and I just started watching a TV show from the 1950s. We have been astonished to see how old the people in their 50s look.

There really has been a change in the past 50 years. People are paying so much more attention to their health, they actually are biologically younger than people of the same age 50+ years ago (this isn't true across the board, of course, but it is true of many)

And there are individual cases, of course.

I was in my late 60s during the last few years I conducted psychological evaluations. I'd often get teens who were on sports teams who were out of shape and who said they were just too lazy to work out.

So I would say, "Would you like some inspiration? I"ll challenge you to a push up contest right now?"

By the time I got to 40 (I can do about 50 in a row) they'd almost always punk out (one guy beat me). They'd then get up and say, "Wow, I need to go home right now and start working out if a guy 45 years older than me can beat me!!)