The Tages-Anzeiger reported that France recorded 2,000 excess deaths within a single week during the first heatwave in June, and Switzerland 200 deaths in the same period. This summer's heatwaves have followed in rapid succession, with La Stampa noting that Italy is enduring its fourth heatwave of the season. The clustering leaves the body no recovery time, said Rémy Slama, an epidemiologist quoted by Tages-Anzeiger.

The human body's primary cooling mechanism is sweating, but it fails entirely when dehydration sets in, explained physiologist Christophe de Jaeger. Core body temperature must remain near 37°C; at 40°C, conditions become life-threatening. While short-term acclimatisation is possible under controlled conditions, as studies during the 2019 Doha athletics world championships showed, the rapid succession of heatwaves prevents recovery for most people.

Access to artificial cooling is deeply unequal. In Italy, only one in two households owns an air conditioner, and using it raises annual electricity consumption by 15%, according to research cited by MillenniuM. For the poorest families, the cost of cooling can consume up to 8% of household income, compared to 0.2-2% for the wealthiest. In Sweden, residents of elderly care homes in Helsingborg must pay for their own air conditioning or fans, a policy that Green Party politicians Sofia Kamlund and Lena Östholm Munkberg called unreasonable in an opinion piece for Helsingborgs Dagblad.

Researchers and politicians are calling for collective rather than individual solutions. Giacomo Falchetta of the CMCC told MillenniuM that relying on private air conditioning leaves a collective problem to personal income. He noted that rooftop solar photovoltaics could offset about half the increased consumption from cooling, but decarbonisation of the entire electricity system is needed. The Swedish government has announced a maximum indoor temperature limit for care homes, though local measures in Helsingborg do not yet include air conditioning in individual apartments. The next factual milestone will be the implementation and enforcement of that temperature cap, which has been announced but not yet detailed.