スマホ首

• 読み: スマホくび
• ローマ字: sumaho kubi
• 漢字の分解: スマホ (smartphone, from English 'smart phone') + 首 (neck) → smartphone neck
• 発音: /su.ma.ho.ku.bi/

意味

Text neck; neck pain or poor posture caused by constantly looking down at a smartphone.

スマホ首 describes the modern epidemic of forward head posture and neck strain from prolonged smartphone use. As smartphone screen time skyrocketed, orthopedic clinics reported a surge in patients with this condition. The term is widely used in health media, beauty advice, and posture correction content, making it one of the most recognizable modern health buzzwords in Japan.

例文

1. スマホ首がひどくて整体に通い始めた。
2. スマホ首の改善ストレッチがバズってたから試してみた。
3. 電車でみんなスマホ見てるけど、絶対スマホ首になるよね。

使い方ガイド

場面: health, daily conversation, social media

トーン: concerned, self-aware

正しい言い方

• スマホ首やばいから、画面の位置もっと上にした方がいいよ。 (Your text neck must be terrible — you should hold your screen higher.)
• 最近スマホ首が気になって姿勢矯正グッズ買った。 (I've been worried about text neck lately so I bought a posture corrector.)

避ける言い方

• 医師の診察で「スマホ首」とだけ言う — 正式にはストレートネックなど医学用語を使う (At a doctor's appointment, use medical terms like ストレートネック rather than the colloquial スマホ首)

よくある間違い

• Thinking スマホ首 is just about the neck — it can also cause headaches, shoulder pain, and upper back problems

起源と歴史

Compound of スマホ (smartphone, abbreviated from スマートフォン) + 首 (neck). Coined in the 2010s as smartphone usage became ubiquitous and orthopedic complaints about forward head posture surged.

文化的背景

時代: 2010s, as smartphone usage became universal

世代: All ages, especially heavy smartphone users

社会的背景: Universal

地域メモ: Used across all of Japan. Frequently featured in health segments on TV and YouTube posture-correction content.