Mount Sinai Health System Nov 1 2024 A heart attack can trigger a desire to get more sleep, allowing the heart to heal and reduce inflammation-;and this happens because the heart sends special signals to the brain, according to a new Mount Sinai study. This research is the first to demonstrate how the heart and brain communicate with each other through the immune system to promote sleep and recovery after a major cardiovascular event. The novel findings, published October 30 in Nature,