病む

• Reading: やむ
• Romaji: yamu
• Kanji breakdown: 病 (yamu, illness/disease) — a single kanji meaning sickness, here specifically applied to mental/emotional unwellness in slang.
• Pronunciation: /ja.mɯ/

Meaning

To become mentally unwell or depressed — describes falling into a dark or emotionally troubled state.

While 病む traditionally means 'to fall ill,' in modern slang it specifically refers to mental or emotional deterioration. It is used when someone becomes depressed, anxious, or emotionally unstable, often due to relationship problems, social media, or life stress. The related noun form 病み (yami) is also common, as is the derived term 病みツイート (yami tweet, a depressive social media post). It sits between casual and serious — lighter than clinical language but heavier than ブルー.

Examples

1. 彼氏に振られてから完全に病んでる。 She's been completely in a dark place ever since her boyfriend dumped her.
2. SNSばっかり見てると病むよ。 You'll get depressed if you keep scrolling through social media all the time.
3. 仕事のストレスで最近ちょっと病み気味かも。 I think I might be slipping into a dark place lately from work stress.

Usage Guide

Context: friends, social media, venting about relationships

Tone: troubled, concerned, self-aware

Do Say

• 最近ちょっと病んでて、誰とも話したくない。 (I've been feeling mentally off lately and don't want to talk to anyone.)
• あの子、失恋してから病んでるみたい。 (That girl seems to have gone into a dark place since her breakup.)

Don't Say

• 目上の人や初対面の人に「病んでます」はカジュアルすぎる (Telling a superior or someone you just met 'yandemas' is too casual and oversharing)

Common Mistakes

• Not understanding that 病む in slang is specifically about mental/emotional state, not physical illness — saying 風邪で病んでる sounds odd in modern usage
• Confusing 病む with ヤンデレ — while related etymologically, ヤンデレ specifically describes a fictional character archetype

Origin & History

From the classical Japanese verb 病む (yamu, to become ill/sick). The semantic narrowing to mental illness in slang usage developed in the 2000s-2010s as discussions of mental health became more common among young people online.

Cultural Context

Era: 2000s-2010s slang usage

Generation: 10s-30s, heavy social media users

Social background: Youth culture, especially online communities

Regional notes: Used across Japan. Very common in online discourse. The 病み aesthetic (dark, melancholic) is also a recognised subculture.