✅ Quick Answer Hair breaks during detangling when dryness, friction, and rough brushing combine. To prevent it: cleanse gently with a lightweight moisture shampoo, detangle on damp hair from the ends up with a wide-tooth comb, keep strands hydrated for flexibility, and blot dry with a soft towel. Gentle handling protects both fragile strands and a sensitive scalp. Summer makes detangling h …