JUN 11, 2016 9:41 AM PDT

When Your Heart Skips a Beat

WRITTEN BY: Julianne Chiaet

An arrhythmia is an abnormal heartbeat. A healthy heart beats 60 to 100 times a minute. That's an average of 100,000 beats a day. Abnormalities in beat include the heart beating too fast, too slow, or in an irregular rhythm. Because your heart is constantly beating, it's not surprising that your heart might not beat perfectly every single time. Thus, as Dr. Sherman explains to Scientific American, while heart irregularities are rare, arrhythmias are most likely normal.

The heart has four chambers: the right atrium and right ventricle, and the left atrium and left ventricle. The right atrium receives oxygen-poor blood and sends it down to the right ventricle. This ventricle then pumps the oxygen-poor blood through the pulmonary artery to the lungs. The left atrium receives the now oxygen-rich blood and pumps it to the left ventricle. The left ventricle pumps the blood through the main artery in the body, called the aorta, which distributes the blood through systemic circulation. When the ventricles pump blood, the heart beats. If the heart is not pumping blood effectively, the heart won't beat properly.

Sources: Scientific American, IvyRose Holistic, NIH (National Heart, Lung, and Blood Institute)
About the Author
  • Julianne (@JuliChiaet) covers health and medicine for LabRoots. Her work has been published in The Daily Beast, Scientific American, and MailOnline. While primarily a science journalist, she has also covered culture and Japanese organized crime. She is the New York Board Representative for the Asian American Journalists Association (AAJA). • To read more of her writing, or to send her a message, go to Jchiaet.com
You May Also Like
MAY 07, 2020
Chemistry & Physics
Your Night Light Could Be a Glowing Plant
MAY 07, 2020
Your Night Light Could Be a Glowing Plant
Glowing plants light themselves up House plants are not just decorations: thanks to science, they might become a part of ...
JUN 07, 2020
Plants & Animals
Everything You Need to Know About the Tawny Frogmouth
JUN 07, 2020
Everything You Need to Know About the Tawny Frogmouth
Tawny frogmouths (Podargus strigoides) are a captivating species of nocturnal bird that, although owl-esque in terms of ...
JUN 16, 2020
Space & Astronomy
What Will it Take to Photograph a Black Hole's Photon Ring?
JUN 16, 2020
What Will it Take to Photograph a Black Hole's Photon Ring?
Just over a year ago, astronomers tapped into the power of the Event Horizon Telescope (EHT), a network of eight radio t ...
JUN 16, 2020
Plants & Animals
Desperate Polar Bear Mother Weighs Risks of Attacking Dangerous Walruses
JUN 16, 2020
Desperate Polar Bear Mother Weighs Risks of Attacking Dangerous Walruses
Polar bears are being subjected to severe living conditions as the Arctic’s ice caps continue to melt, and without ...
JUL 13, 2020
Space & Astronomy
Earth's Moon Had Magma Ocean for 200 Million Years
JUL 13, 2020
Earth's Moon Had Magma Ocean for 200 Million Years
The moon may have hosted an ocean of magma for 200 million years according to new findings- considerably longer than pre ...
AUG 10, 2020
Cannabis Sciences
Researchers Debunk Cannabis Growing Myths
AUG 10, 2020
Researchers Debunk Cannabis Growing Myths
Researchers at Utah State University grew cannabis to study until the Controlled Substances Act came into force in 1970. ...
Loading Comments...