As you all know I have recently gotten back into martial arts after about 4 years out. I used to train MMA but I’ve opted for Brazilian Jiu Jitsu at a local Gracie Barra gym and have been loving ever since! But with strenuous exercise – and exercise that involves up close and personal contact with your fellow class mates (and sometimes more intimate contact than you may want) whilst your face is being rubbed into mats that have had billions…