As I’ve belatedly been learning in the past week, the right way to lift something heavy is not to bend down to lift it. Instead, it is to do a squat.
The reason to do the squat is because it enables us to keep our back straight and ensures our back muscles are supported by our leg muscles.
If this sounds obvious to you, good for you.
For me, on the other hand, learning this was a reminder that doing something in a certain way for a long time doesn’t make it right. That holds true for habits that seem to come “naturally” as well.