Unlocking the Power of Gratitude: The Science Behind Thankfulness

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Written By: Cassidy Wolfe, RDN LDN

In the hustle and bustle of everyday life, it can be incredibly easy to forget to pause and reflect on the small things that bring us joy. Gratitude is emerging as a powerful tool and catalyst for improving one’s mental and physical well-being. Research shows that practicing gratitude not only enhances our mood but can also impact and better our relationships, physical and emotional health, and even increase overall happiness.

In this blog, we will begin to delve into the science behind gratitude, exploring how it reshapes our brains and enhances our emotional and physical health. We will also discuss some practical ways to begin incorporating gratitude into a daily routine!

Effects of gratitude on the brain

Increased dopamine and serotonin

Practicing gratitude has been proven to boost production of dopamine and serotonin, which are two neurotransmitters often referred to as “feel good” chemicals. When we express gratitude, it can begin to enhance overall feelings of happiness and motivation. This can create a rewarding feedback loop, encouraging us to seek out and acknowledge things we are thankful for more regularly.

Reduced stress

Gratitude has been proven to help lower cortisol levels. Cortisol is often referred to as “the stress hormone.” Expressing gratitude has been shown to play a critical role in managing the body’s stress response. This practice of expressing gratitude may actually help to calm the nervous system and stimulate the vagus nerve, which in turn can help reduce feelings of anxiety and promote a sense of calm.

The vagus nerve extends from the brainstem to the abdomen and influences multiple areas of our bodies including heart rate, respiratory rate, and gastrointestinal function. Research has shown that the practice of gratitude activates the parasympathetic nervous system through the vagus nerve, fostering feelings of calmness and emotional resilience while also promoting relaxation and reducing overall stress!

Neuroplasticity

Neuroplasticity refers to the brain’s ability to reorganize itself by forming new neural connections throughout life. Research has shown that regularly practicing gratitude can begin to reshape our brain pathways and cognitive processes. Ultimately, this practice can actually help to promote a more positive mindset over time and can help rewire our brains to focus on the positive aspects of life.

Effects of gratitude on health and well-being

Supports heart health

Emerging research shows that gratitude may have direct heart-health benefits! Gratitude can induce a relaxation response and help decrease cortisol levels as discussed above. By reducing stress and promoting a positive outlook, gratitude helps mitigate the effects of stress hormones like cortisol, which can elevate blood pressure. As gratitude has been shown to also help calm the nervous system, there is also research that shows positive effects on overall heart health and heart rate variability.

Improves Sleep Quality

It has been proven that incorporating gratitude into a daily routine may help lead to improved sleep quality. As explained above, gratitude has a role in promoting relaxation and a sense of calm. This can also impact one’s ability to wind down before bed and makes it easier to fall asleep. Additionally, practicing gratitude can begin to help shift focus away from negative thoughts and anxieties which can often keep people awake at night.

Stronger relationships

Gratitude has been shown to help deepen and also strengthen relationships. Expressing gratitude encourages open and honest communication. Although many studies specifically examine the impact of writing gratitude, the various ways we express it are equally important. This could look like writing letters to loved ones or even expressing gratitude in conversations. When people begin to share their appreciation for each other, it can help to foster a safe environment for sharing feelings and thoughts.

Ways to incorporate gratitude

Gratitude Journaling

One way to incorporate gratitude into your life is establishing a daily practice and keeping a gratitude journal! This is a simple and powerful way to reflect on your day to day or week to week. Set aside a few minutes every day to write out big or small things you are grateful for. Examples could be gratitude for a supportive friend or watching a sunset. Being able to reflect on positive moments throughout your week can be an impactful way of incorporating gratitude.

Expressing Gratitude to Others

Taking a moment to reach out to someone you appreciate is another impactful way of incorporating gratitude. Whether that be a heartfelt note, a text, or an in-person conversation, it not only can help to foster a sense of connection but also enhance one’s emotional well-being.

Gratitude Meditation and Reflection

Another way to incorporate gratitude can be spending a few minutes in quiet reflection or meditation, focusing on things you are grateful for or even redirecting thoughts into a more neutral or positive space. Gratitude meditation is all about experiencing the feeling of appreciation. This could be reflecting on a sunny day, a good book, a good conversation!

Gratitude practice and its benefits can take time to show up for each individual. Studies show that the physical and mental health benefits of gratitude practice do not emerge immediately but can take time. Just like any new practice or habit, the process of cultivating a new pattern can take time to develop. Be patient with yourself and give yourself time as you develop your own gratitude practice!

References:

Komase, Y., Watanabe, K., Hori, D., Nozawa, K., Hidaka, Y., Iida, M., Imamura, K., & Kawakami, N. (2021). Effects of gratitude intervention on mental health and well-being among workers: A systematic review. Journal of occupational health, 63(1), e12290. https://doi.org/10.1002/1348-9585.1229

Sansone, R. A., & Sansone, L. A. (2010). Gratitude and well being: the benefits of appreciation. Psychiatry (Edgmont (Pa. : Township)), 7(11), 18–22.

Witvliet, C. vanOyen, Richie, F. J., Root Luna, L. M., & Van Tongeren, D. R. (2018). Gratitude predicts hope and happiness: A two-study assessment of traits and states. The Journal of Positive Psychology, 14(3), 271–282. https://doi.org/10.1080/17439760.2018.1424924

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