[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

仰卧为主者应选颈部支撑高度8-10cm、后脑凹陷区高度低于颈部区3-4cm的曲线枕,使颈椎维持自然前凸(约30-40度);单纯追求高枕会加剧颈椎变直

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