Best exercise routine for stomach? ?

Can someone give me one specific health problem, and explain it. !

(hope) unrealistic portrayals of slim bodies can encourage people to lose an unhealthy amount of weight. being underweight or malnourished can lead to a. liver abnormalities b. tendon rupture c. muscle damage d. heart issues

Where does peer pressure come from? a.the power of culture b.the influences of others c.people who purposely try harm you d.the messages in tv commercials