內地男子飲冰水後嘔血 溫差太大原來會心臟病發？

夏日炎炎，最好的消暑方法，當然是開大冷氣嘆冰水。但你又知不知道在運動後飲冰水，或者出入冷氣房，可能會令身體負荷不了，甚至有生命危險？

心臟病發

運動後或者在高溫的狀態下，人體的血管會保持擴張。如果此時突然飲冰水或者進入冷氣房，腦神經會受低溫環境和凍水影響，導致心跳減慢，血管急速收縮，心臟有機會未能負荷，導致心臟病發作。2019年就有案例，一名27歲的秘魯足球員Ludwin Florez Nole在比賽後飲用冰水，隨即感到胸痛，送醫途中不幸猝死。據診治醫生說，該球員在高體溫狀態下喝了冰水，導致心臟病發死亡。

食道黏膜撕裂

如果在體溫高的情況下，一口氣飲用大量的凍水或凍飲，當凍水經過消化管時，消化管黏膜會產生痙攣，導致其損傷。近日內地一名男子在炎熱天氣下，一口氣喝下1公升的冰鎮飲料後感到不適，在醫院內邊走邊吐血，其後陷入休克狀態，經診斷後證實是食道黏膜撕裂。該名男子表示，他平時的身體狀態良好，只因當時天氣太熱才一口氣喝下大量凍飲，導致食道受傷。

中暑

若經常進出冷氣房和戶外，容易令體溫調節失控。當人體無法控制自身的溫度時，體溫就會迅速飆升，且無法降溫，導致中暑而危及生命。另外，萬一出現中暑的情況，喝室溫水能有效舒緩症狀。但喝冰水降溫反而會加劇中暑症狀，因為冰水會令血管收縮，引起胃痙攣，降低身體水分吸收率。

參考資料

Henry, M. (2019). Footballer, 27, dies of cardiac arrest after drinking glass of ice-cold water at end of match in Peru. Associated Newspapers Ltd Part of the Daily Mail, The Mail on Sunday & Metro Media Group. https://www.dailymail.co.uk/news/article-7008419/Footballer-27-dies-cardiac-arrest-drinking-glass-ice-cold-water.html

KENT RO SYSTEMS. (2019). 5 Ways Drinking Chilled Water Affects your Body. KENT Blog. https://bit.ly/3P38Zgp

udeshna, D. (2022). Man Chugs Iced Tea Bottle In One Shot, Falls Ill & Vomits Blood. MSNews. https://mustsharenews.com/chugs-iced-tea-bottle/

HVAC-BUZZ. (n.d.). Can You Get Sick From Going in and out of Air Conditioning. HVAC-BUZZ. https://hvac-buzz.com/sick-in-and-out-air-conditioning/

The National Institute for Occupational Safety and Health. (2022). Heat Stress – Heat Related Illness. The National Institute for Occupational Safety and Health. https://bit.ly/3zyK0Md

Carolyn, H. (2018). How to Beat Heat Exhaustion and Prevent Heat Stroke. Dignity Health. https://www.dignityhealth.org/articles/how-to-beat-heat-exhaustion-and-prevent-heat-stroke

Anuja, J. (2014). Blame your AC for heat stroke. The Times of India. https://timesofindia.indiatimes.com/city/raipur/blame-your-ac-for-heat-stroke/articleshow/35851738.cms

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