Barcelona's extreme heat

It is 100 degrees here, at least it feels like it and this religious parade is populated by people in full dress. The rest of the world visiting Barcelona in the summer, is scantily dressed at best, and I understand why. It is so hot that you only have time to drink water continuously and if you are moving, you look for a place to sit, so you don't get heat exhausted. Today, for instance, I am fully contemplating doing close to nothing, so I can finally breathe. Maybe visit one museum and spend the rest of the day as if I am a local, sitting at a restaurant, sipping a "Pepsi lite" or even a beer at 10 am. Yes, that is exactly what they do. I think all the alcohol evaporates before you swallow it and that's how the liver tolerates it. Otherwise everyone would fall down with the weight of Medusa's snake like head.