I disagree. I hardly see anyone that looks like that today. You have to hunt high and low to find someone with that period look. I just think so many of them looked very haggard (or very hard), chubby-faced, and old before their time. It wasn’t just the ‘20s. I don’t think “modern females” as we see today looked as such until the mid ‘60s.
"Dentistry," as P.J. O'Rourke so wisely observed. Also, epidemic infectious disease. The "Roaring 20s" were immediately preceded by the Spanish Flu epidemic.
And they had no air conditioning, although they didn't need it in Newport.