When you are smiling and laughing, you are sending a message to those around you that you are experiencing good feelings. Others are attracted to you because they want to experience the same feelings. While these short-term psychological benefits are important, laughing and smiling have long-term benefits, as well, for your physical and emotional health.
Laughing is an effective outlet for stress and tension that can instantly improve your mood. Laughter causes the brain to release endorphins, which are chemicals that produce a sense of well-being and help you relax. In tense situations, laughter can help defuse potential conflict. Relationships thrive when the individuals involved have a good sense of humor.
A good, hearty laugh relieves physical tension and stress, leaving your muscles relaxed for up to 45 minutes after.
Laughing decreases stress hormones and increases immune cells and infection-fighting antibodies, thus improving your resistance to disease.
Laughing improves the function of blood vessels and increases blood flow, which can help protect you against a heart attack and other cardiovascular problems.