August 2006 PMID 16614357

Thermal effects of whole head submersion in cold water on nonshivering humans.

Thea Pretorius, Gerald K Bristow, Alan M Steinman, Gordon G Giesbrecht

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Mentions

Peak: 1 in Jan 2023

across 2 sources since Jan 2023

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5,229

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627

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Jan 2023 – Oct 2025

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AI synopsis

What people are saying

The discussions reflect a moderate level of enthusiasm and understanding, with mentions of how submerging the head increases overall cooling efficiency, as seen in phrases like 'speeds up the whole-body cooling effect' and 'more benefit for less time.' The tone indicates appreciation of the practical implications, supported by technical references that demonstrate a fair depth of engagement.

AgreementModerate agreement

Most discussions agree that head submersion enhances cooling, as evidenced by comments about increased heat loss and potential benefits.

InterestModerate interest

Participants show moderate interest, discussing the implications of the findings and potential efficiency gains.

EngagementModerate engagement

Comments include technical insights and references to the study's specifics, indicating curiosity and thoughtful engagement.

ImpactModerate impact

The discussions suggest recognition of the research's importance, especially in contexts like medical cooling or emergency response.

Abstract in brief

The study examined how submerging the whole head in cold water affects heat loss and core cooling in humans, while preventing shivering using medication.
Results showed that immersing the head increased core cooling more significantly than total heat loss, especially when the head was submerged, possibly due to blood flow redistribution to areas stimulated by cold receptors.
Overall, in 17°C water, head submersion causes a small increase in heat loss but leads to a much larger cooling effect on the body's core, likely because the body’s blood flow changes reduce the effective perfused mass.]

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