If you use a Sony A7 series camera, every month, the camera will take a picture upon shutting it off, which it uses to remove dead pixels/hot pixels - you can hear it, actually.
If ever you have a pixel die or get stuck, you can also manually set the date a couple months ahead and turn it off - it will most likely be fixed when it turns back on.
If ever you have a pixel die or get stuck, you can also manually set the date a couple months ahead and turn it off - it will most likely be fixed when it turns back on.