Summary:

- The article discusses the limitations of existing heat stress thresholds, which are often based on average or healthy individuals, and do not adequately account for the vulnerabilities of certain groups, such as the elderly, children, and those with pre-existing medical conditions.

- It highlights that these thresholds may not accurately reflect the true risks and impacts of heat stress on vulnerable populations, and that more nuanced and targeted approaches are needed to assess and mitigate the risks.

- The article emphasizes the importance of considering the specific physiological and socioeconomic factors that contribute to heat vulnerability, and the need for policymakers and researchers to develop more inclusive and comprehensive heat stress assessment frameworks.