Like all muscles and tissues, your heart needs oxygen to live.

The song talks about a man whose heart needs "a woman's touch".

It happens when your heart is working harder and needs more oxygen, such as during exercise.

Your heart and kidney function will also need to be tested.

Then they may start to have symptoms at times when the heart is working harder and needs more oxygen, such as during exercise.

Then why does your heart need so much help that you ask it of the air?

The baby's heart continued to beat, but more tests needed to be run.

Your heart and liver function may also need to be tested.

The heart needs love, and there was love last night.

The heart needs a normal rhythm to pump the blood well.