Questions 19-23: Read the following passage and choose the word or phrase that best fits each of the numbered blanks

Benefits of Laughter Yoga
Laughing is good for the body and the mind. When we laugh, we breathe more oxygen into our body, which helps to keep us (19) __________. Endorphins, or happy chemicals, are released in the body, and you feel more relaxed and happier. Laughter also brings people together (20) __________ some fun.
Companies that have run laughter yoga workshops find that they have (21) __________ for both employers and employees. People who are happy at work are more hard- working and (22) __________ more money for the company. Also, people who can laugh together communicate more successfully. (23) __________, people do better at work when they feel happy and relaxed.