I think that assumes a lot about what people do in the winter. I do most of my running in the winter because the summers are too hot to run, for instance.

Yes, it’s obviously a generalization. All else equal, the summer days are longer and the people are less lethargic.

> Honestly, you should be skipping dinner in winter

Do you just sit around while your friends and family eat? Do you just not enjoy eating food?

I’d be sad and bored if I skipped dinner as my default for an entire season.

I swim three miles at a rapid pace before I go home in the evening. How far and fast do I need to swim to achieve an active state so I can eat dinner?

If you spend one a half hours every day swimming, I commend you.

Your comment is a bit low effort. Did you assume I was talking about you specifically? That’s a bit absurd.

To be fair, you did say “you” and “your”, inviting the reader to assume you are writing specifically for them.

I am grown up in Germany with the old wisdom that lunch should be the main meal and dinner should lighter and around 6 pm, 7 at the latest. Nothing after that.

Whether that's correct or not I don't want to debate. There are for sure many different opinions. I know only 1 obese person who might have been living somewhat according to that rule, the vast majority isn't overweight.

How can you have your main meal for lunch and not feel sleepy for the rest of the day?

You don't have massive meals and not much alcohol if any

in Spain they do it by taking a nap! extremely civilized