It wasn't physical that I noticed it was more "emotional" I believe. My oldest daughter EVERY year in school she would have a best friend. The friend always ended up to be a troubled child. It was like they were drawn to her. She would help this friend emotionally and she would be "better." Then every year the friend would move away and my daughter would be crushed. The cycle would repeat every year. Finally I got tired of seeing her hurt year after year so I ended up telling her maybe this is "training" for a future job you are gonna have where you are around a child, council them, they get better and then have to move on. After that each year there was no more tears. Her first job..... Ended up being.... Over seeing a bunch of kids, most of them troubled, and she ended up helping them then had to let them go for summer.