Exercise doesn't just strengthen the heart. It rewires it
Researchers have discovered that regular aerobic exercise physically remodels the nerves regulating the heart in a side-specific manner. This study on rats reveals that exercise changes the structure of nerve clusters differently on the left and right sides of the body.
Why it matters
Understanding these specific neural changes could lead to more precise medical treatments for heart conditions like arrhythmias and stress-induced heart syndrome.
Regular exercise may benefit the heart in a way scientists are only beginning to understand. Beyond improving cardiovascular fitness, new research suggests that moderate aerobic exercise reshapes the nerves that regulate the heart. The findings could eventually help doctors develop more precise treatments for common heart conditions.
Researchers from the University of Bristol (UK) found, for the first time, that regular aerobic training changes the heart's controlling nerves differently on the left and right sides of the body. The study, published in Autonomic Neuroscience , uncovered a striking left-right difference that may one day improve treatment strategies for irregular heartbeats, chest pain, angina, and stress-induced 'broken-heart' syndrome.
Study lead author Dr. Augusto Coppi, Senior Lecturer in Veterinary Anatomy at the University of Bristol, said: "The discovery points to a previously hidden left-right pattern in the body's 'autopilot' system that helps run the heart.
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