Research indicates that individuals with certain esophageal conditions, such as achalasia—a rare disorder that impairs the ability to swallow—might benefit from avoiding cold water.
Achalasia can make swallowing difficult, and a 2012 study found that cold water exacerbated symptoms in those with the condition.
In contrast, hot water appeared to help soothe and relax the esophagus, easing the swallowing process.
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Additionally, a 2001 study involving 669 women suggested that cold water might trigger headaches in some individuals.
The study reported that 7.6% of participants experienced a headache after drinking 150 milliliters of ice-cold water through a straw.
Those with active migraines were found to be twice as likely to experience a headache from cold water compared to those without a history of migraines.
Despite some claims, there is no scientific evidence supporting the notion that cold drinks or foods can cause a sore throat or lead to a cold
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