For example, high intensity circuit weight training and high intensity interval cardio (HIIT) have been proven to be effective for long-term fat loss and weight loss provided you have a good fat loss meal plan. Do interval cardio sessions instead of long cardio sessions. All it takes is 20 minutes of intervals on grass or stepmill. This method will burn more fat than doing 60-minute cardio sessions that wastes away your muscle mass.
19. What about metabolism slowing down with age? In general, your metabolism slows down at a rate of 5% per decade after age 40 (source: WebMD.com). The easiest way to keep a healthy metabolic rate for life is to engage in consistent weight training and interval cardio. This way, you will maintain important muscle mass and burn fat.Some factors that affect metabolism include age, heredity, gender and lean muscle mass. Men tend to have faster metabolisms than women. Thyroid problems may also cause your metabolism to slow down.