Is it unhealthy to suppress sweat?

Sweat has important functions, including cooling you down when it’s hot outside. Here’s what science says about using antiperspirants and deodorants

Every day, 5 billion people around the world reach for deodorant. Many of us assume that managing, modifying and hiding sweat is an absolute necessity – and not just in your armpits.

Routine underarm antiperspirant and deodorant use are unlikely to cause harm. But do you know what sweat is actually for, and what these products actually do?