The Zodiac Signs Struggling Most in the Heatwave — Full Ranking

Extreme heat affects people through age, health, medication, housing and activity—not their birth date. Heat exhaustion can cause dizziness, headache, nausea, heavy sweating, cramps and intense thirst, while heatstroke requires urgent medical help.

This full ranking is entertainment built around familiar astrological archetypes, not a scientific measure of heat tolerance. Research has found no reliable evidence that zodiac signs determine personality, so every sign should follow the same safety guidance.