 specific guidance for people with, for example, cardiovascular disease that tries to get people to have proactive conversations with providers saying, hey, it's super hot out. What should I be thinking about with hydration? We know that our bodies can tell us when we're well hydrated. Our mouths are wet inside. Our urine is clear, if not maybe a little bit yellow. If it gets dark yellow, its body's telling us we're not as well hydrated.