The nervous system has done this really quick, rectified it and your blood pressures shot back up to keep you perfused. But let's just say it wasn't necessarily rectified and your blood pressure remained low for minutes or even hours. So you need another system to kind of kick in as well. This is another one that can be used if it hasn't been rectified in a very short term. We're all talking about boosting up blood pressure here, right? Yeah, okay. Because we're talking about having low blood pressure.