Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

The heart beating right within your chest is a vital organ for keeping you alive. Traditionally, it was also believed to operate under the exclusive control of the autonomic nervous system, which ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

The researchers identified several types of neurons in the heart that have different functions, including a small group of neurons with pacemaker properties. The finding challenges the current view on ...

New research from Karolinska Institutet and Columbia University shows that the heart has a mini-brain - its own nervous system that controls the heartbeat. A better understanding of this system, which ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

One of the best ways to reduce your risk of heart disease is by getting regular medical checkups with your doctor. Routine tests and screenings can help detect heart issues and warning signs before ...

Heart damage occurs when substances or medical conditions harm heart tissue. Signs of heart damage from drugs may include chest pain, irregular heartbeat, and cough. Substances can affect the cells of ...

Dehydration may lead to heart palpitations. Without enough fluids, the heart works harder to pump blood, causing an increased heart rate and irregular heartbeats. Heart palpitations from dehydration ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...