Gratitude reduces a multitude of toxic emotions, ranging from envy and resentment to frustration and regret. Robert A. Emmons, Ph.D., a leading gratitude researcher, has conducted multiple studies on the link between gratitude and well-being. His research confirms that gratitude effectively increases happiness and reduces depression.

Grateful people are more likely to behave in a prosocial manner, even when others behave less kind, according to a 2012 study by the University of Kentucky . Study participants who ranked higher on gratitude scales were less likely to retaliate against others, even when given negative feedback. They experienced more sensitivity and empathy toward other people and a decreased desire to seek revenge.

Writing in a gratitude journal improves sleep, according to a 2011 study published in Applied Psychology: Health and Well-Being . Spend just 15 minutes jotting down a few grateful sentiments before bed, and you may sleep better and longer.

A 2014 study published in the Journal of Applied Sport Psychology found that gratitude increased athlete’s self-esteem, which is an essential component to optimal performance. Other studies have shown that gratitude reduces social comparisons. Rather than becoming resentful toward people who have more money or better jobs – which is a major factor in reduced self-esteem- grateful people are able to appreciate other people’s accomplishments.

For years, research has shown gratitude not only reduces stress, but it may also play a major role in overcoming trauma. A 2006 study published in Behavior Research and Therapy found that Vietnam War Veterans with higher levels of gratitude experienced lower rates of Post-Traumatic Stress Disorder. Recognizing all you have to be thankful for – even during the worst times of your life – fosters resilience.