Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > Health-in-Motion 30 May 2017 When trying to lose weight, should you eat or fast before exercising? When trying to lose weight, should you eat or fast before exercising? That’s one of the questions British researchers tried to answer in a recent study by looking at the expression of genes in the fat tissue of a group of overweight males. The expression of the genes PDK4 and HSL increased when the test subjects didn’t eat before exercising, suggesting that energy from stored fat was used to power the physical exercise, potentially leading to weight loss. The opposite was the case when the men ate before exercising. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Medical 1 in 4 SA workers suffers from depression Lifestyle Reasons why your scalp is itchy – and how to fix it News These are the areas where you are most at risk of getting malaria News WHO warns SA is not entirely geared up for major epidemics Lifestyle ‘My birth control pills gave me a liver tumour’ – this is how it happened Lifestyle US soldier receives world's first penis and scrotum transplant From our sponsors WIN a R2 000 beauty voucher! Understanding diabetes self-management Fed up with the Phlemings? Let’s chat diabetes and erectile dysfunction Live healthier FYI » When the flu turns deadly Why the flu makes you feel so miserable Could a deadly flu strain hit SA this winter? Following an intense flu season in the US and UK, should we be worried about our own upcoming flu season? Alcohol and acne » Dagga vs alcohol: Which is worse? SEE: Why you are drinking more alcohol than you realise Does alcohol cause acne? Some foods can be a trigger for acne, but what about alcohol? Dermatologist Dr Nerissa Moodley weighs in.