The Exercise Experiment

     Researchers did a study on 7000 Dutch adolescents about their physical activity, bodyweight, mental problems, and socioeconomic status. They found that those adolescents that feel they're over or underweight or don't exercise at all were at greater risk for internal (depression, anxiety) or external (drug/alcohol abuse, aggression) problems. Not only does Exercising often or playing on a team sport keep a person fit and healthy on the outside, it also benefits a person's mental health. As a person becomes more fit, they're appearence becomes more appealing and his/her peer's liking towards the person can increase which boosts self esteem. On sports teams, there's a strong sense of support for each other such as encouraging teammates as they compete. This support also boosts a person's mental health and self esteem because they know that their peers acknowledge and have a
mutual relationship with the person.

Nicolas, Alexander I: Physics Question

Q: So how can a man be able to break numerous blocks of concrete with his hand?

A: Although a man should have done some training before attempting to break the blocks of concrete, there’s also physics involved. The man needs to exert a large amount of force onto the blocks of concrete at a certain point. He generates a large amount of force because of how fast his hand accelerates onto the block. Since the blocks are close together, the momentum of fore from the first block breaking continues onto the next blocks until all of them are broken. If the man misses his target, inertia, an equal and opposite reaction will end up hurting or even breaking his hand.