Exercise Alters Heart-Controlling Nerves
Regular aerobic exercise reshapes the nerves that regulate the heart, according to a July 2026 study from the University of Bristol. The study, published in Autonomic Neuroscience, found that after 10 weeks of training, rats showed asymmetric changes in the stellate ganglia nerve clusters — paired structures in the lower neck and upper chest that send “go faster” signals to the heart.
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