By Richard Turbo, Make Room For Happiness:
Researchers now believe that our brains are hard-wired 
in ways that, to some degree, determine just how happy we're going to be.
The left prefrontal cortex serves as the center for positive, optimistic and happy feelings. When people have higher than normal activity in this brain region, they are more likely to feel positive, and they tend to start each day ready to take on the world.
Fortunately for guys like me, as powerful as these genetic predispositions may be, happiness is still within our control, says David Myers, PhD. "It's like our cholesterol level – genetically influenced, yet also influenced by our habits and attitudes," Myers says.
"Happy people are hugely resilient on the whole," says Dan Baker, who wrote the book What Happy People Know. "One thing happy people know is that they don't get to be happy all the time. They can appreciate the moments, the little victories, the small miracles, and the relationships with one another."
