Something I found very interesting was that people with specific personalities develop various habits. For example, in the novel conscientious individuals tend to live longer because they do more things to protect their health and engage in fewer activities that are risky. The book also explained that some people are biologically predisposed to be more conscientious and healthier (less prone to a whole host of diseases). The book goes further to state that having a conscientious personality leads you into healthier situations and relationships. I found this very interesting because it makes sense that sociable people are more likely to engage in unhealthy behaviors because they may surround themselves with bad influences. One question that I had when reading these chapters was that people who have a combination of a sociable personality and a conscientious personality are they at a advantage or disadvantage when it comes to longevity?