Nutrition Articles

Expert Solutions: Metabolism Mistakes

SparkPeople experts and coaches weigh in on the top 4 metabolism mistakes even smart dieters make

Mistake #3: Exercising in the “Fat Burning Zone”
Another common myth is that it is good to exercise at lower intensities so that you are in the "fat burning zone".  I have even heard people say that their personal trainers told them to work out this way, which is another reason people shouldn't believe everything they hear!  A lot of cardio machines also have the picture of the "fat burning zone" on the machine, or have "weight loss" programs, which most people figure is what they need.  Then they get frustrated because their progress is so slow and don't understand why.
Mistake #4: Focusing on One Thing at a Time
JOE (SparkPeople Fitness Coach)
Metabolism includes many different variables: sleep, nutrition, fitness, stress management, etc., all of which work together to help the body function at a higher level. There seems to be a tendency to work on one thing at a time, with the idea that once you’ve "mastered" that one thing, you can move on to the next one. Unfortunately, losing sight of the importance of the “other” areas keeps you from seeing improvements. We may fall into this trap because of things we were taught at a young age—to focus on one thing at a time. 
DEAN (Behavioral Psychology & Stress Management Expert)
Speaking of sleep, there is a large and growing body of research showing that even mild sleep deprivation has adverse effects on metabolism. There are several pathways involved here, but one of the main mechanisms appears to involve leptin and insulin (hormones associated with appetite). Apparently sleep deprivation generates the same biological state as sustained calorie deprivation: high night-time cortisol levels, which in turn leads to insulin resistance and decreased concentrations of leptin (the appetite-suppressing hormone released by body fat). In effect, your brain starts thinking you're in the middle of a food scarcity situation, and turns your appetite up several notches, and reduces your need for sleep even more so you have more time for foraging.
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