Now this is probably going to sound like teaching grandma to suck eggs, but try and relax a little and grab some sun whilst on holiday. If looking to drop some body fat around your tummy, taking your stress levels down a bit will certainly help… Cortisol (your body’s stress hormone) is one of those chemicals that contributes to storing fat around your stomach. If you chill out and reduce this hormone, your body-fat levels should begin to start dropping!