“Giving thanks always and for everything to God the Father in the name of our Lord Jesus Christ.” (Ephesians 5:20, ESV) I’m convinced that a lot of the grumpiness in this world can be cured if people learn to live a life of gratitude. Not only will we enjoy being around each other more, but we will also improve our physical and mental health. We will sleep better, have lower blood pressure, and feel less stress. We will enjoy better relationships and will lead happier, more satisfied lives. Research even suggests that we will become less materialistic as we fill…