A sauna and a steam room are not the same thing.

Most people treat them as equals — hot room, good sweat, job done. But the science tells a different story.

One has decades of research behind it, with studies linking regular use to significantly lower rates of cardiovascular disease, stroke, and Alzheimer's. The other feels great and helps you relax, but has no long-term data to back up the health claims.

The difference comes down to one thing: humidity. Swipe through to understand why it matters — and which one is actually worth your time.

Source: Instagram