1.   My heart was doing its usual bass drum act as we drew in.

2.   Then her heart did a double somersault.

3.   Her heart did a ridiculous dance inside her chest.

4.   Her colour fluctuated wildly, and so did her heart.

5.   Nothing compared to what her heart did when she looked at him like that.

6.   Anybody can score given the opportunity but it takes a real man to go down there and rebound and play defense and have some heart doing it.

7.   But his heart does.

8.   But those drugs often reduce blood pressure and heart rate, in effect making the heart do less work.

9.   His heart did, but only barely.