健康

In a sentence

• 彼女は毎日運動しているので、とても健康です。

  She exercises every day, so she is very healthy.

  Here, '健康' is used as a noun to describe the general state of being healthy.

• 健康を維持するためには、バランスの取れた食事が重要です。

  To maintain health, a balanced diet is crucial.

  In this context, '健康' functions as a noun referring to the general concept of health.

• 彼は健康的な生活を送るために、早寝早起きを心がけています。

  He makes an effort to go to bed early and wake up early in order to lead a healthy lifestyle.

  Here, '健康的な' is an adjective form of '健康,' meaning 'healthy,' qualifying the type of lifestyle.