Paper
Habitual cold-water swimming and upper respiratory tract infection.
Published Aug 24, 2021 · N. Collier, M. Lomax, M. Harper
Rhinology
Q1 SJR score
6
Citations
1
Influential Citations
Abstract
It has long been claimed that non-wetsuit cold water swimming (CWS) benefits health (1), and anecdotally cold-water swimmers claimed to suffer fewer and milder infections, though this was not directly measured. A boost to immunity is biologically plausible: stress hormones are released during cold-water immersion (2), and short-term stress may ready the immune system for injury or infection (3). However, very few studies have investigated immune system markers and/or actual illness in habitual cold-water swimmers.
Study Snapshot
Key takeawayHabitual cold-water swimming may boost immunity and reduce upper respiratory tract infections, but more research is needed to confirm these claims.
PopulationOlder adults (50-71 years)
Sample size24
MethodsObservational
OutcomesBody Mass Index projections
ResultsSocial networks mitigate obesity in older groups.
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