Exercise improves brain controls in rabbits with chronic heart failure

Another substance that helps control arterial pressure is the hormone angiotensin (ANG II). Then, there’s an enzyme that converts angiotensin (ACE and ACE2). A recent study found that exercise normalized levels of these enzymes in rabbits with chronic heart failure. The conclusion, though many unknowns are still involved, is that exercise can re-balance such enzymes in the part of the brain that controls autonomic functioning.

Nobody’s making any promises that this will convert to a change for humans with chronic heart failure. But there do seem to be some chemical similarities between the human and the rabbit brain. I had a pet rabbit for 8 years. I’m glad she wasn’t one that got used for the research, but I trust that today’s experiments are by law conducted humanely on all living creatures.

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