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Metabolism: Myths and facts

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.

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IDEA EXTRACTED FROM:

Metabolism: Myths and facts

Metabolism: Myths and facts

https://www.medicalnewstoday.com/articles/8871.php

medicalnewstoday.com

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Key Ideas

Metabolism

It refers to the biochemical processes that occur within living organisms to maintain life. These processes allow us to grow, reproduce, repair damage, and respond to our environment.

When people use the word "metabolism" they are often referring to catabolism and anabolism. People's body weight is a result of catabolism minus anabolism.

Metabolic Rate And Weight

It is a common belief that slim people have a higher metabolism and overweight people have a slower metabolism. But, this is rarely the case.

Overweight is in most cases a result of a lifestyle in which one group generally consumes more calories than they need. There isn’t much we can do to significantly change our resting metabolic rate, but long-term strategies, such as increasing muscle mass, may eventually have an effect.

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 tissues.

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.

Factors Influencing Caloric Requirements

  • A larger body mass requires more calories.
  • For people of the same weight, the one with a higher muscle to fat ratio will have higher caloric needs.
  • The progress of age leads to reductions in muscle mass, testosterone/estrogen production, physical activity.
  • An average man burns more calories than an average woman of the same age and weight, due to men having a higher muscle to fat ratios.

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SIMILAR ARTICLES & IDEAS:

Metabolism

It refers to the thousands of chemical reactions that turn what we eat and drink into fuel in every cell of the body. These reactions change in response to our environments and behaviors, an...

How The Body Uses Calories
  • Basal metabolism is the energy our body needs to keep our cells working and accounts for 65-80% of most adults' caloric consumption.
  • The thermic effect of food is the energy our body uses to process food and accounts for 10% of most adults' caloric consumption.
  • Physical activity accounts for 10 - 30 % of most people’s caloric consumption .
Controlling Your Own Weight

Not everyone overeats and becomes overweight, and not everyone who becomes overweight or obese develops illnesses like diabetes or heart disease. 

There was never a special diet, exercise regimen, or supplement that worked universally to control weight. Through trial and error, we have to discover habits and routines we can stick with that help us eat less and move more. 

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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.

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Fasting....

...is the voluntary withholding of food for spiritual, health, or other reasons.

Food is easily available, but you choose not to eat it. This can be for any period of time, from...

Intermittent fasting for weight loss

When we fast, Insulin levels fall, signaling the body to start burning stored energy as no more is coming through food. Blood glucose falls, so the body must now pull glucose out of storage to burn for energy.

In essence, intermittent fasting allows the body to use its stored energy. 

Health benefits of intermittent fasting
  • Weight and body fat loss
  • Lowered blood insulin and sugar levels 
  • Possibly reversal of type 2 diabetes
  • Possibly improved mental clarity and concentration
  • Possibly increased energy
  • Possibly increased growth hormone, at least in the short term
  • Possibly an improved blood cholesterol profile
  • Possibly a reduction in the risk of Alzheimer’s disease 
  • Possibly longer life
  • Possibly activation of cellular cleansing by stimulating autophagy
  • Possibly reduction of inflammation

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