你总是很健康可以用英文表示为："You are always healthy."

"Healthy"是英文形容词，源自中古英语"hælþ"，意思是"健康的，强健的"。

下面是一些使用"healthy"的例句：

Eating a healthy diet is important for maintaining good health.
(健康饮食对维护良好健康很重要。)

Exercise is important for maintaining a healthy pfestyle.
(锻炼对于维护健康的生活方式很重要。)

It's important to get enough sleep to stay healthy.
(保持充足的睡眠很重要以保持健康。)

He's always been healthy, with no major health issues.
(他一直很健康，没有任何重大健康问题。)