Happiness = emotions
Emotions = feelings
Feelings = senses
Senses = environment
Environment = Earth
Earth = polluted
Polluted = death
Death = afterlife
Afterlife = religion
Religion = questions
Questions = problems
Problems = math
Math = equations
Equations = solutions
Solutions = meaning
Meaning = depression
Depression = emo
Emo = /wrist
/Wrist = blood
Blood = biological
Biological = science
Science = never exact
Never exact = confusion
Confusion = arguments
Arguments = fights
Fights = war
So, therefore:
Happiness = war