Scientific Proof That Being Thankful Improves Your Health

During Thanksgiving week, people around the United States express gratitude for the bounty of their lives, but many may not realize that in doing so, they're also improving the quality of their health and increasing their life expectancies.

The scientific evidence is conclusive when it comes to mood, outlook, and health. Happy people live up to 10 years longer than unhappy people, and optimists have a 77% lower risk of heart disease than pessimists.

But how can YOU become happier and more optimistic in your world view?

The How Of Happiness

In Sonja Lyubomirsky’s The How Of Happiness, she teaches us how 50% of our propensity for happiness is based on a genetic set point, something we can’t influence very much, 10% is based on life circumstances (such as getting the promotion, finding The One, or achieving the creative dream), and 40% is “intentional activity” that we can influence with our behavior.

That means we can be up to 40% happier in our lives without changing our circumstances one bit, and one of the key intentional activities is the practice of gratitude.

Research shows that consistently grateful people are happier, more energetic, more hopeful, more helpful, more empathic, more spiritual, more forgiving, and less materialistic. They’re also less likely to be depressed, anxious, lonely, envious, neurotic, or sick.

The Evidence

In one study, one group of participants were asked to name five things they’re grateful for every day, while another group was asked to list five hassles. Those expressing gratitude were not only happier and more optimistic, they reported fewer physical symptoms (such as headache, cough, nausea, or acne). Other gratitude studies have shown that those with chronic illnesses demonstrate clinical improvement when practicing regular gratitude.

Severely depressed people instructed to list grateful thoughts on a website daily were found to be significantly less depressed by the end of the study when compared to depressed people who weren’t asked to express gratitude. And we know that depression is a significant risk factor for disease.

For more surprising scientific proof about how to be ultimately healthy, read Mind Over Medicine or watch my public television special Heal Yourself: Mind Over Medicine (check listings here). (Hint: Being generous and radical self care are good for your health, so try giving generously of your time and love this holiday season while also focusing on your own self care!)

How Does Gratitude Boost Happiness?

How to practice gratitude

You don’t have to wait for Thanksgiving to enjoy the benefits to your health and happiness that accompany gratitude.

1. Keep a gratitude journal.

Ponder 3 to 5 things you’re currently grateful for (it’s okay if these are mundane things!) and write them down. Data suggests that doing this once per week may be most beneficial, but if you find that doing it daily works best for you, go for it!

2. Cultivate an attitude of gratitude.

Journaling may not be your cup of tea, so you might be better off just training yourself to think grateful thoughts. Try noticing one ungrateful thought you have each day and switching it around to something you can be grateful for.

3. Vary your gratitude practice.

Try journaling, thinking grateful thoughts, speaking what you’re grateful for at dinner time, making art about what you’re grateful for, but shake it up! We tend to get bored easily, so the practice of gratitude works better when we change how we’re grateful.

4. Express gratitude directly to others.

Call a friend, write a letter, share your grateful thoughts with family members, or speak to a colleague at work about what you’re grateful for.