AUSTIN (KXAN) — We’ve all heard the phrase, “It’s not the heat, it’s the humidity.” As it turns out, it’s both — and it’s called the heat index.
The heat index is a crucial concept when it comes to understanding how our bodies respond to hot weather. It all boils down to sweat.
In this First Warning Weather University lesson, Chief Meteorologist Nick Bannin takes a closer look at the heat index and how it impacts us every day.