The Clue What many do at a hospital
The Answer REST
Many people go to a hospital to recover from illness or surgery, and resting is an important part of that process. In a hospital, patients often need to take time to heal, which means they spend a lot of time resting. Additionally, doctors and nurses encourage rest to help the body regain strength. Therefore, "rest" is a fitting answer to the clue about what many do at a hospital.