2.competition is good to a certain extent because it forces you to test your abilities and if you fail  you take the feedback from the event and improve the mistake and you give it all you got to outstand the competitor untill you overcome him. It is healthy but it is sometimes unhealthy because sometimes you become obssesed with overcoming the competitor that it physically distroys you . I take it from my swimming perpective in competitions because you realize what you need to improve and then you try to go faster and stronger on every stroke you make on the swimming pool.