thermoregulation of elderly

老年人因體溫升高而引起的近表皮血管舒張功能下降，加上出汗的能力較差，不宜在酷熱天氣下逗留在戶外太久。缺乏適當的避暑行為與較為緩慢生理反應同樣值得重視。

In elderly, the ability of vasodilation and sweating in response to increasing body temperature is hindered. The absence of appropriate behavioral responses is probably as important as impairment of physiological responses. (Modified version of Dr. Shiu's notes)