What's wrong with my father?

i kf sounds like he is vey worried about something

try to understand the psychology of your father, I think he have pain deep inside of his heart, try to consider him with kindness.

Sometimes my dad will have a bad mood, especially when he doesn't feel well. I also don't like that. Since we are already tired when we go home. Why he can't give us a bright smile? It really spoils my mood to see his serious face as if we have done something wrong. This is not good.

How old is your father? He is alone? I mean is his wife still with him? May be he is unhappy because he feels alone. Or this can be a sign of senile dementia.

Too bad. That is the way it is in some families. How does your mom handle his behavior?

I guess it's part of old age.

It's becauae they're hiding their true feelings. They want to look tough like action stars. In reality, they are as frail as you are. They act that way because that is how he was brought up. And as the saying goes, "you can't teach old dogs new tricks". The best thing you can do is to reach out and look for his soft spot. Make him feel that someone loves him. With that, I am sure he can give a smile or two for you.