最近健康に気をつけています。

N4 最近 saikin recently, nowadays, lately N4 気 ki spirit, mood, feeling, energy N5 います imasu there is / exist (living things)

N3 最 sai, shu / motto.mo, tsuma utmost, most, extreme N4 近 kin, kon / chika.i near, early, akin N1 健 ken / suko.yaka healthy, health, strength N1 康 kou ease, peace, tranquille N5 気 ki, ke / ki spirit, mind, air

N5 〜ている te iru Indicates ongoing action, continuous state, repeated habit, or resulting condition depending on context N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action