expression, godan verb (-su)
go out of order; go wrong; become abnormal; show strange symptoms; change for the worse
Used when a system, condition, or health state deviates from normal in a negative way. Often appears in medical, technical, or formal contexts.
機械が変調をきたして動かなくなった。
The machine went out of order and stopped working.
ストレスで体調に
Stress caused my physical condition to become abnormal.