After a good workout you may notice that spots have suddenly appeared, well these are called ‘sweat spots’ and yes they are a nuisance – especially if you love a streamy sesson at the gym or regular jogs. However, if your not working up a sweat, over the past couple of years of wearing masks hasn’t help with the appearance of sweat spots, but that still doesn’t mean you just have to put up with them. Scroll down, to where you can find out everything you need to know about what actually causes them, as well as how to avoid them and give them a big swerve. What causes sweat…