It's hard to say whether this applies to all people or to a specific category, but there is an explanation for why aging people are grumpy.
There is an opinion that nature itself, a changing worldview and awareness of a sad fate force a person to grumble, get angry and irritated. This is not entirely true.
Researchers believe that even a previously active, positive and good-natured person can turn into a grumbler.
One might think that a person is irritated by the youth that surrounds him here and there, while he is forced to fade away.
But in fact, the reason is incredibly simple.
Old people start to grumble, get angry and spoil the mood of others out of boredom. Hence the tendency to make a mountain out of a molehill.
Any little thing can throw an aging person off balance.
To avoid such mood swings, older people are advised to define their interests.
Usually in such cases they advise getting a pet, doing creative work, or starting to learn something new.
Earlier we talked about why carnations are considered a mourning flower .