Why does it seem easier to be sad?

Why is that it seems easier to be sad then happy?
but thats just what I think

In life I guess you just need to remember that its not one constant emotion but a range of emotions that let us have depth and add richness to our lives. And remember this quote:
"This soon too shall pass"

Life is continually changing you won't be happy or sad forever.

Look at the life from the positive site then you will see the life it’s great and when you have any problem know there is a solution for it and know this is a lesson for you to learn also after bad news there is good news. Don’t ever give up, live every moment in the life. I hope I helped

Thanks a lot it has helped all of you
gives me a new way to look at things

Isnt it easier to be happy? Things just always seem to go well for me when I have a positive outlook on life, and I am happy.