A mental disorder characterized by persistent low mood, loss of interest or pleasure, and decreased motivation (clinical depression). Often requires diagnosis and treatment.
最近、気分が沈んでいて、病院でうつ病と診断された。
Lately I've been feeling down and was diagnosed with depression at the hospital.
うつ病の治療には薬物療法と心理療法の両方が有効なことが多い。
Treatment for depression often includes both medication and psychotherapy.
無理をせず早めに専門医に相談することが大切だと医師は言った（うつ病の疑い）。
The doctor said it's important not to push yourself and to consult a specialist early (suspected depression).