Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Why too many vitamins might harm you > Health-in-Motion 18 August 2017 Why is dieting so difficult? Why is dieting so difficult? Because our body actively works against us! We have a built-in thermostat that couples the number of calories we eat to the number of calories we burn. When we eat less, our body compensates by burning fewer calories, making it much harder to lose weight. Scientists have recently identified a group of neurons in the brain’s hypothalamus which play a key role in this process, making us hungry when they’re activated, but minimising the number of calories that we burn when food intake is limited. 0 More: Daily Dose: Why too many vitamins might harm youHealth-in-Motion advertisement Other news Medical Possible causes of sensitivity: crown or enamel issues Fitness This 4-minute workout will burn fat like crazy Medical A new way to diagnose food allergies Medical SEE: Every 4 seconds a new case of this disease is diagnosed Lifestyle Do e-cigarettes damage blood vessels? Lifestyle Why too many vitamins might harm you From our sponsors R2000 Skin Renewal online store voucher up for grabs! Dementia and Incontinence: what you need to know 8 strategies for treating both your bladder problems and your depression Symptoms differ from person to person, identifying what triggers your IBS Live healthier Beware! » 7 steps for surviving the flu 'I nearly died at an Adele concert’ How to tell if your doctor's a quack Your health is precious, so you need to be sure your doctor's the real deal. Bathroom etiquette » Less salt may lead to fewer nighttime bathroom trips SEE: 9 more funny bathroom signs Which office bathroom habits are the most important? Can you maintain your professionalism in your bathroom cubicle?