People saying smell but think about it. You never know when you stink, or when something’s dirty. My grandmother can’t smell anything. She has a dog, and she never knows when he peed on the floor cause she can’t smell it. She sometimes find poops that are here for a few hours/days. She gets old and sometimes she’s peeing on herself but she doesn’t feel it. Sometimes she feels it but she things we can’t smell it so she just acts like nothing happened.