Because some programs are unhealthy.

　　因?yàn)橛行┕?jié)目不健康。

　　Eating unhealthy food is another problem.

　　吃不健康的食物是另一個(gè)問(wèn)題。

　　Their bodies have therefore become unhealthy.

　　他們的身體因此變得不健康。