There is no sound in the world besides baby bean's soft breath and my own steady heartbeat. (attachmentparenting.org)
Fruit flies that limited eating to 12 - hour stints had steadier heartbeats in old age than flies that ate whenever they wanted, researchers report in the March 13 Science. (sciencenews.org)
Then came the days of wondering if we were going to be able to actually hold you, and then came what I can only call a miracle, the miracle of your steady heartbeat and then the miracle of movement and then your eventful but ultimately safe arrival. (sarahbessey.com)