Take a Break
Taking breaks is the best way to relieve tension. Take small breaks regularly to stretch and move around. A short break every 30 minutes is much better than a longer break every 2 or 3 hours.
Lean back in your chair and let your arms hang loose. Shake your hands gently and stretch and curl your fingers.
To relax your eyes, remember the 20/20/20 rule: every 20 minutes, stare at an object 20 feet away for 20 seconds.
Did you know that better typing habits also increases your typing efficiency? With better typing habits, your brain tends to remember key positions efficiently.