Gratitude is a key to a happy life. Grateful people get a boost in happiness and optimism, feel more connected to others, and are more likely to help others — they even sleep better.
Grateful feelings also crowd out negative emotions, such as anger, envy, and resentment. If you find someone difficult, try to find ways to feel grateful for that person. “My father-in-law annoys me, but I’m grateful for how wonderful he is to his grandchildren.”