In my point of view, mental health is as important as physical health to us, and to make people healthier both(adv.两者都) physically and mentally, there is no other way than adopting a positive attitude toward life.
both...and both 连词 不但.....而且枝岩；两者都 的意猛慎御思，连接两个名词、形容词等
as important as 是as...as 短语 和......一样 。 中间加形容孝盯词或副词的原级，这里important 是形容词 与身体
健康一样重要
希望帮到你。祝进步！
toth and中both是连词
as important as 相当于形容词