The other person could be peer pressuring you and an internal factor could be a chemical in your brain
Answer:
awwww this is so sweet. we need more people like this honestly
Walking- slower and better for knees
running- faster and worse for knees
There are two definitions on which way you are saying stress.
pressure or tension exerted on a material object or a state of mental or emotional strain or tension resulting from adverse or very demanding circumstances.