Posture, wrists and desk setup: playing without hurting

A dull ache in the wrist after long sessions. Tightness in the forearm. A shoulder that hurts by the third hour. You stretch it, play through it, and it comes back a little sooner each time. Eventually you are aiming around the pain, which means your aim is getting worse while you are practising more.

Almost all of this comes from the same few things: a desk and chair at the wrong heights, a mouse gripped too hard, a wrist bent while it works, and sessions with no breaks. None of it is about toughness. It is about angles and rest.

Your hands are the only interface you have with the game. A player with a healthy wrist has a longer career than a player with better aim and a damaged one. Overuse injuries are common in people who spend long hours on a mouse and they rarely fix themselves. They start as a mild ache and finish as months away from the game.

Posture also shows up in aim right now, not just later. A hunched shoulder tightens the arm. A tight arm makes a flick jerky. A wrist bent upwards to reach the mouse has less range and less control. Sitting properly is a mechanics improvement as much as a health one.

1. Set the desk to your elbows. Sitting with your shoulders relaxed, your elbows should be at roughly ninety degrees with your forearms level with the desk. If the desk is too high, raise the chair and put something under your feet. If it is too low, raise the desk.
2. Keep the wrist straight. Whether you aim from the wrist or the arm, the wrist should be in line with the forearm, not bent up, down or sideways. If your mouse is too small or too high for that, the mouse is the problem.
3. Loosen the grip. Hold the mouse as lightly as you can while still controlling it. A death grip is the most common cause of forearm pain and it also makes your aim worse. Notice your grip during a clutch and let it go.
4. Take a break every hour. Stand up, walk for a minute, shake out the hands, roll the shoulders. Every hour, without exception. Long sessions without breaks are how a mild ache becomes an injury.
5. Warm up the hands, not just the aim. Before a session, a minute of wrist circles, opening and closing the fists, and gentle forearm stretches. It takes less time than loading into a deathmatch server.
6. Sit back, feet flat. Back against the chair, feet on the floor or a rest, screen at eye height so you are not craning down. Leaning forward into the screen feels focused. It is just tension.
7. Treat pain as a stop sign. Discomfort that goes away when you stop is a warning. Pain that persists after the session, or that wakes you, is an injury, and the answer is a physiotherapist, not a stretch you found on a forum. 1HP, listed on the resources page, specialises in exactly this for gamers.

Fix the desk once, take the breaks every session, and you get to keep playing at your best for years. That is a better return than any guide in the mechanics pillar.