button – n. something you press to control a piece of equipment
relax – v. to become happy and comfortable because nothing is worrying you
steer – v. to control the direction of a vehicle
treat – n. a piece of free food, drink, etc., provided to someone
flexible – adj. able to be easily changed
enrich – v. to improve the quality of something by adding something to it
hormone – n. one of several chemicals produced in the body that influence growth and development
stress – n. feelings or worry or nervousness caused by difficult situations or problems
task – n. a piece of work, especially something unpleasant or difficult