Extreme Heat Stress and Unplanned Hospital Admissions.

Objectives: The burden and health impact of heat stress on child hospitalization is limited. This study aims to investigate associations between extreme heat stress exposure based on a Universal Thermal Climate Index (UTCI), emergency department (ED) visits, and ED visits that translate into unplanned hospital admissions.

Methods: This population-based case-crossover study included all ED visits and unplanned hospital admissions among children and adolescents aged 0 to 18 years from New South Wales, Australia, from July 2001 to June 2020.

Quantifying the time course of changes in maximal skin wettedness with 7 days of heat acclimation.

The aim of the present study was to quantify the time course of changes in maximum skin wettedness (ω)-that is, the proportion of skin surface area covered in sweat at the point of uncompensable heat stress, throughout seven consecutive days of heat acclimation. Nine adults (6 M, 3 F) completed a humidity-ramp protocol (RAMP) on , , , and of seven consecutive days of heat acclimation. In each RAMP trial, participants cycled continuously at 275 W·m for 120 min at 37°C: 60 min at a vapor pressure of 2.

The effect of prescription and over-the-counter medications on core temperature in adults during heat stress: a systematic review and meta-analysis.

Background: Heat stress impacts are an escalating global health concern. Public health bodies such as the World Health Organization (WHO) warn that certain medications impair thermoregulation, with limited supporting evidence. Our aim was to investigate whether medications listed by the WHO increase core temperature responses during heat stress.

Evidence of seasonal heat acclimatisation in recreationally active adults during a mild summer.

Objectives: To assess the magnitude of seasonal heat acclimatisation in recreationally active adults and contextualise the process by documenting the factors that influence adaptations.

Design: Longitudinal, repeated measures design.

Methods: Seventeen (7 females) recreationally active adults (28 ± 8 yr, V̇O 54 ± 8 mL·kg·min) exercising outdoors a minimum of 5 h·wk completed a 45-min heat response test running at 60 % V̇O in 40 °C and 30 % relative humidity prior to, midway through, and following summer.