A.under B.over C.as D.when E.ofHappiness is a choice;you can choose to be sad when every

Happiness is a choice;you can choose to be sad when everything is going well for you and you can choose to be happy even _____1 nothing seems right.To be happy at all times,you need to make happiness a habit and not just an act.Scientists believe that 20 minutes of exercise can make you happy regardless of how sad you may be.Exercise raises your heart rate and triggers a surge _____2 hormonal changes._____3 your heart begins to pound,certain hormones are released which create a sense of total well being and you begin to feel well again,the mind stress is gone and everything is_____4 control.Another thing you can do is take a walk,this works for me all the time.When you take a walk,you are able to think____5 matters that are bothering you and come up with solutions to them.