How hot is too hot? Scientists found dangerous heat limits arrive sooner than most people think (opens original article in a new tab)

Research indicates that dangerous heat levels, combining temperature and humidity, occur sooner than previously believed, posing risks even to healthy individuals and highlighting the need for better cooling solutions.

• Scientists found that dangerous heat limits occur at lower wet-bulb temperatures than previously thought, around 31 C instead of 35 C.
• Heat stress experiments showed that even healthy individuals face rising core temperatures when exposed to specific combinations of temperature and humidity.
• Vulnerable populations like the elderly are at higher risk during heat waves, and cooling solutions may become less effective as humidity increases.