Feeling blah? Head outside. Mother Nature may be the ultimate mood booster.

Science has long backed the health benefits of the great outdoors.

Spending time outdoors impacts your physical and emotional health. Going outside can fight depression and lower blood pressure.

Feel cranky after a long day indoors at school or work? A 10 minutes walk outside soaking in some sun can radically change how you feel and ultimately perform.

Can't think?

Go outside.

Feeling down?

Go outside.

Can't sleep?

Go outside.

You get the idea.

• The viral video from Finland prompting more interest in the health benefits of spending time outside.