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Your metabolism starts slowing down at age 18, and other facts about a widely misunderstood process
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Your metabolism
It is in every cell in your body. It refers to a series of chemical processes in each cell that turn the calories you eat into fuel to keep you alive.
The body's major organs — th...
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How we burn energy
There are 3 main ways:
- the basal metabolism, the energy used for your body's basic functioning while at rest
- the energy used to break down food (also known as ...
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Metabolism variations
Metabolism can vary a lot between people, and researchers don't understand why.
2 people with the same size and body composition can have different metabolic rates. One can consume a h...
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Metabolism and getting older
Getting older slows down the metabolism.
The effect happens gradually, even if you have the same amount of fat and muscle tissue. So when you're 60, you burn fewer calories at rest tha...
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You can't speed your metabolism
There's a lot of hype around" speeding up your metabolism for weight loss, but that's just a myth.
While there are certain foods (coffee, chili, and other spices) that may speed the ba...
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Diets and metabolism
Drastic dieting can slow down your metabolism. This may be the body's way of vigorously defending a certain weight range, called the set point.
Researchers don't full...
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Anabolism
Anabolism is a succession of chemical reactions that build molecules from smaller components and usually require energy. Anabolism allows the body to grow new cells and maintain all the...
Catabolism
Catabolism is a series of chemical reactions that break down complex molecules into smaller units and usually release energy. Catabolism provides the energy our bodies need for all its activities.
Body Weight
It's a result of the amount of energy we release into our bodies (catabolism) minus the amount of energy our bodies use up (anabolism). The excess energy is stored either as fat or glycogen in the muscles and liver, with fat being the most caloric dense of the two.
Although becoming overweight is a result of the body storing excess energy as fat, sometimes, hormonal problems or an underlying medical condition may affect metabolism.
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Key Ideas
Skipping Breakfast
Researchers say breakfast doesn't kickstart the metabolism and may not be the most important meal of the day. Different studies have found that skipping breakfast doesn’t lead to weight increase an...
"Hot" Workouts
They won't really help you lose weight. Research suggests regularly sleeping in colder temperatures may be optimal for weight loss as they stimulate the production of brown fat, the "good" fat. Brown fat keeps us warm by burning through "bad" fat stores.
Turn down the heat at night. You'll trim your belly and your heating bills.
Tongue-Scorching Peppers
Hot sauce can boost your metabolism. But research suggests that more-palatable, mild peppers may have the same calorie-burning potential.
Pack your salads and stir-fry with sweet peppers-including bell peppers, pimentos, rellenos, and sweet banana peppers. They're just as effective as the hot stuff.
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Eat Plenty of Protein at Every Meal
Eating food increases your metabolism for a while because extra calories are required to process your meal. This is called the thermic effect of food (TEF).
Protein increases your metaboli...
Drink More Cold Water
Drinking water may speed up your metabolism for about an hour. This calorie-burning effect may be even greater if you drink cold water, as your body uses energy to heat it.
Drinking water can also help you fill up and help you eat less, especially if you drink it half an hour before you eat.
Do a High-Intensity Workout
High-intensity interval training (HIIT) involves short, intense bursts of activity and help you burn more fat by increasing your metabolic rate.