Is hair loss really a joke? . ,

That's not true. Hair is more or less your own fault. If you laugh at others with less hair, it is not a friend at all. Friends don't laugh at themselves for some reason, so don't be such friends. No big deal. If your friend's hair is short or defective, will he feel better if we laugh at him? Even if he is not a friend, he should know that it is a courtesy. He who laughs at others conveniently is the saddest person.