From supportive friendships to toxic colleagues, our relationships can shape our stress levels more than our jobs, finances, or even our diet and health habits. A new study suggests that who we surround ourselves with can negatively affect our longevity. Scientists at Indiana University in the USA conducted a study on how the people around us can impact the stress in our lives. The researchers focused on the effect people called "hasslers" had on us. A hassler is an annoying individual who regul