A drug is given to make the heart respond as if the person were exercising.

This way the doctor can still determine how the heart responds to stress, but no exercise is required.

The heart responded, beating once, twice, each time more strongly.

My heart, however, does not respond in the desired way to her letter and certificate.

He would always remember his elation when Walter's heart responded.

For once the heart of her father did not respond to her feeling.

You may be given nitroglycerin to see how your heart responds to this medicine.

The heart responds to this greater nervous drive with an increase in pulse and blood pressure.

The heart of the book is the "moral cause" and how to respond.

But first I want to examine you to see how your heart responded to the exercise.