The phrase "a second heartbeat" is correct and usable in written English.
It can be used in contexts related to life, emotions, or metaphorical expressions, often implying a sense of renewal or a new beginning.
Example: "After the intense moment of silence, I felt a second heartbeat, as if life was returning to the room."
Alternatives: "a renewed pulse" or "a second life".
It is the silence of soldiers who have not yet been, and may never be, able to talk about what they learned in war, the silence of grief so familiar that it feels like a second heartbeat.
I can't worry about those people — those people who have never even tried to feel the techno beat rise in their chest like a second heartbeat, realizing that a lit torch doesn't have to hurt to the touch, depending on your mind state — going about their droll, dependent lives, picking up their son from his Head Start program.
But there's this person of interest you're hoping to see at the party and you thought that maybe with a little concealer or by combing down your bangs you might be able to appear in public, so this is what you do, only to end up, sometime later, standing in the corner, feeling the zit on your forehead actually pulse, like a second heartbeat.
Sure enough, Vivisys makes the startling announcement: A second heartbeat has been detected!
The scanner was set to acquire an image every second heartbeat; a two-heartbeat interval was selected to balance the amount of data that we could acquire with the increase in signal-to-noise ratio that accompanies cardiac-gated brainstem fMRI data acquisition (Zhang et al., 2006).
Featuring guest bars from rising stars Sampa The Great and Okenyo, "Second Heartbeat" showcases an impressive selection of Australian talent, led by established hip-hop luminary and Elefant Traks co-founder Urthboy and now featuring world-class, boundary-pushing production chops from Collarbones.
Completely transforming the sun-drenched original cut of Urthboy's "Second Heartbeat", SYD-ADL duo Collarbones have launched headfirst into a gritty, blown-out early-AM setting for their first remix in a long while.
Due to a heart frequency of >70 per minute, images were acquired every second heartbeat.
Do you remember a time before birth when the rhythm of the universe was your second heartbeat?
Still, she told The Independent Journal that if she had to choose between good health and her artistic gifts, she would choose her art — "in a second, in a heartbeat".
After the artifact the first heartbeat showed a poor correlation of cycle length detection due to a changed amplitude pattern.
