Gratitude may be a gesture or a group of kind words that we give or receive from others. But these simple exchanges of thankfulness goes a long way in affecting our overall biological functioning – especially the brain and the nervous system. The effect of gratitude on the brain is long lasting (Moll, Zahn, et al. 2007). Besides enhancing self-love and empathy, gratitude significantly impacts on body functions and psychological conditions like stress, anxiety, and depression.