In my experience, people with mania (the opposite of depression) tend to exhibit more visible symptoms, like talking a lot and very loudly, laughing more than the situation warrants, appearing overconfident etc. While people with depression are harder to notice, except in severe cases were they can’t even get out of bed. So if someone doesn’t have symptoms of mania, it is likely they aren’t manic.
Of course it is possible there are extremely happy people who aren’t manic, but equally it is also possible that there are extremely unhappy people who aren’t depressed. Since the latter seems rare, the former seem also rare.
In my experience, people with mania (the opposite of depression) tend to exhibit more visible symptoms, like talking a lot and very loudly, laughing more than the situation warrants, appearing overconfident etc. While people with depression are harder to notice, except in severe cases were they can’t even get out of bed. So if someone doesn’t have symptoms of mania, it is likely they aren’t manic.
Of course it is possible there are extremely happy people who aren’t manic, but equally it is also possible that there are extremely unhappy people who aren’t depressed. Since the latter seems rare, the former seem also rare.