Most of the time it's because of attitude, happier people tend to accept their life situation positively, but of course some people have better lives, e. g. Money, great spouse great community/ family etc.
Because randomness is lumpy.
because they masturbate more than others in which brings up a sexual arousle and tension within oneself to bring up high blood pressure therefore making them happier Hope i helped :)
Always get inspired from the people that don't have a lot. Still they are much happier than others.
Maybe that those people are happier with those who they belong with. Or, they could love each other a lot that they want to stay there in that country.
Some people need more sleep than others because of their age and what they do.
because some people's are bigger than others
Being able to whistle doesn't mean your a happier person than others. Often people whistle when they are happy though but people who can whistle will still have bad days.
no cuz we have more things
Some people are better dancers than others because their coordination might be better.
If our immediate ancestors were happier than us it was probably because they got to spent more time with their families. If primitive man was happier than people living today, it was because they did not know any other way to live.
Hinduism does not believe that some people are better than others but focuses on members of the religion being the best that they can be.
Some people are funnier than others, for much the same reason that some people play basketball better than others. We are all different.
Some people just have eyebrows that tend to grow more thickly in the center than others do, just as some have thicker hair on their head than others do.