1 An utterance is a natural unit of speech bounded by breaths or pauses. 2  An utterance is a complete unit of talk, bounded by the speaker 's silence.
The best time to do flexibility exercises is when your muscles are already warm so they can stretch farther without tightness or pain. If youâre doing only stretching exercises, warm up with a few minutes of easy walking first to warm up your muscles.
Start at a slow pace, and give yourself enough time to gradually bump things up. Do stretch when your muscles are warm. Stretching cold muscles can cause injury. Don't push a stretch too far. If it hurts, go into the stretch more easily, breathe deeply, and relax into it. Do hold each stretch from 15 to 30 seconds.