noun
nervous breakdown; neurosis; illness from anxiety
Refers to a mental or physical condition caused by excessive worry or anxiety. Often used in contexts where stress leads to real health problems.
彼は仕事のストレスで気の病になった。
He developed a nervous breakdown from work stress.
気の病は早めに休養をとれば治ることもある。
Sometimes an illness from anxiety can be cured by taking an early rest.