Metabolism is a very popular word when watching weight loss commercials on television. Many people don’t know what metabolism does though. Metabolism is the process the human body goes through to convert food and drink into energy. It’s a biochemical process the combines the calories in food and beverages with oxygen, and then it releases the energy formed from this into the body to keep the body functioning. Metabolism doesn’t just give the body the energy it needs to move, but it also aids functions that happen even while sitting, like breathing, blood circulation, and cell repair.
When people talk about their high metabolism, or low metabolism for that matter, they are really referring to the basal metabolic rate, which is the amount of calories the body uses to carry out its basic functions. Even sleeping can burn calories, although not as many as someone would burn on an hour jog. The basal metabolic rate itself burns around 60 to 75% of a person’s calories each day.
Not everyone burns the same amount of calories, or has the same basal metabolic rate. Some determining factors of this rate include:
Larger people with more muscle burn more calories, even when they are resting.
Men tend to have more muscle, and less body fat, than do women. Because of their increased amount of muscle they burn more calories than women.
Muscle density decreases as people get older, and fat begins to replace it. This process aids in slowing down the body’s ability to burn calories. According to WebMD, “Starting at about age 25, the average person’s metabolism declines between 5% and 10% per decade.”
Metabolism Myths
Many people blame their “slow metabolism” on weight gain, but that isn’t the case. While there are determining factors to how many calories the body burns, it’s more likely a lack of proper diet and a lack of physical fitness attributes to weight gain. For those that think that it’s their metabolism to blame for those extra pounds, take a look at these more likely culprits:
What’s Messing with My Metabolism
Of the culprits mentioned in the myths of a slow metabolism, the following two items are the most likely candidates for an inability to lose weight:
The way the body “uses” food is called food processing, and it has a few steps. Food processing is also known as thermogenesis and consists of digesting, absorbing, transporting, and storing food. Thermogenesis actually accounts for about 10% of the calories people burn each day.
When it comes to food and weight loss it is also important to:
After food, the rest of the calories the body burns comes from the physical activity and exercise a person gets each day. The more a person is up and moving the more calories they will burn and the better their metabolism will work. Physical activity can be as simple as walking the dog or playing tag with the kids.
Don’t blame metabolism on that extra weight, instead, take the steps needed to watch the amount of calories coming in and going out!
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