expression, godan verb (-su)
fall ill; get sick; have one's health deteriorate
Used when someone's physical condition worsens, often due to overwork, stress, or a change in environment. Common in both casual and formal contexts.
最近、仕事が忙しくて体調を崩してしまった。
Lately, I've been so busy with work that I've fallen ill.
季
It's easy to get sick at the change of seasons.