 Uh, it can be cumulative. It can happen to you one afternoon. Don't get me wrong. If you aren't drinking a lot of fluids and you've been out in the heat too long and, uh, and you have, uh, you know, just cooked your brain and your body, uh, you can have heat stroke just from, you know, that hour in the heat and the sun, but heat stroke can also, or heat stress, uh, can, can also build up, uh,