# Posture and Ergonomics
Confidence: high
Last verified: 2026-05-22
Generation: ai_assisted


## TL;DR

Good posture minimizes stress on joints, muscles, and ligaments. Desk ergonomics: monitor at eye level, elbows at 90°, feet flat on floor, lumbar support. 'Best posture is next posture' — move frequently. Prolonged sitting: 8+ hours/day linked to increased mortality, independent of exercise.

## Core Explanation

Screen height: top of monitor at or slightly below eye level. Keyboard: wrists straight, elbows ~90°. Chair: thighs parallel to floor, knees ~90°, 2-3 finger gap behind knees. Stand up every 30 minutes. Text neck: head forward posture — each inch forward adds ~10 lbs of cervical spine load. Standing desk: alternate sitting/standing.

## Further Reading

- [Ergonomic Guidelines (OSHA)](https://www.osha.gov/ergonomics)