There's no health anything. Interest rates go up, some of this money goes out of the stock market and into other things. When they come back down, the companies

There's no health anything. Interest rates go up, some of this money goes out of the stock market and into other things. When they come back down, the companies will operate in the same way again. Everyone is just responding to financial incentives, nobody is trying to run anything in a "healthy" way, as if there was a margin which the universe defined as healthy. They know this and could've underhired as this was always a possibility but the game rewards having the pedal to the metal when it's going up, and that's what they will do next time again.