Toxic environment

I’m wondering if a toxic family life can affect your physical appearance? I’ve been going through family pictures, I’ve been with my husband for 8 years now. He’s always been skinny skinny. 3 years ago we made the decision to cut off his family members who are extremely toxic. I was noticing in the more recent pictures that my husband looks so much healthier than he did. He’s still lean but he looks healthy and strong. I didn’t realize how sickly he looked before until seeing the new him. We really haven’t changed anything else, we have added 2 children but we still eat the same and have the same habits. I saw his brother a few days ago as well and thought he was looking a little worse for wear (this was before I thought about the changes in my husband.) his brother is living at home still and is around the toxic parents a lot. Anyways - is that crazy to think that it could have affected him so much?? Maybe he’s just aging well?