New research indicates that individuals over 60 are at risk of heat-related health issues at lower temperatures than previously believed. Earlier assessments underestimated the vulnerability of seniors to rising temperatures, potentially leading to inadequate public health responses. Studies show physiological changes associated with aging diminish the body’s ability to regulate temperature effectively. This increased sensitivity means health risks, such as heat exhaustion and heatstroke, can occur at temperatures considered comfortable for younger adults. Experts emphasize the need to re-evaluate heat action plans and awareness campaigns to specifically address the needs of older populations. Public health officials are now advised to issue warnings at lower temperature thresholds to protect this vulnerable group. The findings underscore the urgency of preparing for increasingly frequent and intense heat waves due to climate change.