Complete these sentences with the words or phrases in the box.Blood pressurecirculationmusclespainkillerbrainheartbeatorganrelaxation1. When we laugh, we use 15 different ________ in our face.2. Laughter is good for every ________ in our body.3. When we laugh, ____________ our goes down.4. Laughter makes our ____________ better.5. A beta-endorphin is a natural __________.6. Laughter makes our _________________ lower.7. Laughter makes a natural painkiller in our ________.8. Forty-five minutes of __________ is the same as one minute of laughter.