Detailed Answer
Endurance is the ability to maintain speed and accuracy over 10+ minutes. Train it: 1) Once daily, type continuously for 10 minutes – don't stop to fix errors, just keep going. 2) Gradually increase from 5 to 20 minutes over a month. 3) Use longer texts (news articles, book chapters). 4) Take a 30-second 'shake-out' break every 3 minutes if practicing casually, but for test prep, type non-stop. 5) Strengthen fingers with grip exercises or stress balls. 6) Ensure proper ergonomics – pain kills endurance. 7) Hydrate. 8) Practice at 85% of your max speed; you can sustain that much longer. Track your WPM in minute 1 vs minute 10.