Not a physical device, but a biofeedback loop. Using a PPG sensor (like an Apple Watch or Oura Ring), patients train HRV (Heart Rate Variability) specifically during sleep.
How do you fight a problem as complex as V09? You don't use a hammer (a single pill). You use a scalpel and a software update. heart problems v09 by xenorav
Old cardiology waits for the elephant on the chest. V09 diagnostics look for the whispers before the scream. Not a physical device, but a biofeedback loop