According to the Intergovernmental Panel on Climate Change (IPCC), the global mean temperature is expected to increase from 1.4°C to 5.8°C by 2100. The implications will be particularly significant in urban areas as indoor and outdoor comfort levels will be disrupted, leading to significant health impacts. One of the expected impacts is indoor overheating, as it has been identified as one of the major causes of thermal discomfort and is directly linked to the potential increase in mortality levels in the future. This paper focuses on the potential implications of increased overheating hours on human health in an old low-income residential neighborhood. We study the effect of three main factors: population coping capacity, building thermal performance, and human physiological response to heat exposure. This is achieved by examining an old low-income neighborhood in Cairo, Egypt, whose residents have limited cooling systems access. Results indicate higher overheating risks in older buildings with a projected increase of 18% in indoor temperature and higher health risks, especially for elderly residents. The study's findings can be considered a starting point to examine the relationship between exposure duration, indoor air temperature range, and potential health risks for vulnerable urban communities with limited access to cooling mechanisms such as AC units.

根据政府间气候变化专门委员会 (IPCC) 的说法，到 2100 年，全球平均温度预计将从 1.4°C 上升到 5.8°C。由于室内和室外舒适度将被打乱，对城市地区的影响将尤为显着，导致严重的健康影响。预期影响之一是室内过热，因为它已被确定为热不适的主要原因之一，并且与未来死亡率水平的潜在增加直接相关。本文侧重于在一个旧的低收入住宅区增加过热时间对人类健康的潜在影响。我们研究了三个主要因素的影响：人口应对能力、建筑热性能和人体对热暴露的生理反应。这是通过检查埃及开罗的一个旧的低收入社区来实现的，该社区的居民无法使用冷却系统。结果表明，旧建筑的过热风险更高，预计室内温度会增加 18%，健康风险更高，尤其是对老年居民而言。该研究的发现可以被视为一个起点，用于检查暴露持续时间、室内空气温度范围和对空调装置等冷却机制的访问受限的脆弱城市社区的潜在健康风险之间的关系。