So THIS Is Why Gratitude Makes Us Happier

And through my journey, I’ve learned the nitty-gritty, biological reasons that gratitude can make you happy, and maybe (I don’t say this lightly) change your life. Here's how it works:

Optimism, regular positive thoughts and reactions to life's challenges, is observable in brain scans. Optimistic thoughts calm and soothe the amygdala, the part of the brain that sounds the stress alarm. Optimism also lowers the stress hormone cortisol, releases pleasure-inducing neurotransmitters, and activates the parasympathetic nervous system, which is responsible for rest and relaxation.

Thoughts and words of gratitude are powerful triggers of optimism. When these thoughts are repeated frequently, the brain connects thoughts and words of gratitude with a sense of well-being. Eventually, new neural pathways are formed, which is what happens with any habitual thought pattern (good or bad). This is a way to harness your knowledge to encourage a positive outcome.

A year ago, my thought patterns often led to worry or fear. Rewiring my brain so the default was positive didn't happen overnight. Just like any new habit, cultivating an attitude of gratitude takes practice. For me, that means being grateful every day in one form or another.

I started by designating a gratitude notebook and carrying it around with me all the time. Day after day, I wrote in my notebook whenever I thought of something I was grateful for. The notebook filled up quickly, and I found I was writing about the same topics over and over. As my gratitude practice evolved, I set aside time every morning to write in that notebook, ensuring that my day started with a positive focus that sent warm fuzzies to my brain.

If the notebook feels like too much, you can simply spend a few minutes thinking grateful thoughts when you first wake up. Before you even get out of bed, think of all the things you are thankful for in your life — your loved ones, your home, your job, your body, etc. Make a mental list instead of writing it down — your brain won't know the difference, and you'll still experience the positive benefits of gratitude.

Tell others how grateful you are for them, in small ways every day or every week. Each act of gratitude will not only feel good for those on the receiving end, it will flood your brain with good feelings that can have a profound effect on your life.