Body Composition: BMI, Metabolic Rate & Fat Metabolism

Body composition analysis relies on BMI calculation, understanding BMR/RMR standards, and identifying the biochemistry behind fat metabolism and lipolysis.

cosmetic liposuction surgery

What Foods Should I Not Eat After Liposuction?

Liposuction is a cosmetic surgical procedure that removes fat from selected body areas. It is commonly performed on the abdomen, thighs, arms, buttocks and hips. Although liposuction is not a weight-loss solution, it is an option to remove centralized fat that is unresponsive to diet and exercise.

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Nerve Cell

5 Things You Need to Know About Acetylcholine

Acetylcholine is an excitatory neurotransmitter that conducts electrical impulses through a series of actions, making it possible for nerve cells to communicate with muscle cells and generate muscle contractions.

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Dieting woman on bathroom scales

What Is a Healthy Weight for a 25-Year-Old Woman?

As a 25-year-old woman, your concerns with weight may be more about aesthetics than your health. But you might be surprised to learn that a healthy weight is not one that requires a starvation diet. A couple of methods are available that you can use to determine your healthy weight, based on your height.

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USA, New Jersey, Jersey City, Woman measuring waist

What Happens When Your Body Fat Drops Low?

Although it's more common in the United States to have too much body fat than too little, make sure you don't go too far in your weight-loss efforts. If your body fat drops too low, it can have health consequences, just as when your body fat is too high.

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Basketball Player Smiling to Camera

BMI With Frame Size

Body mass index is the ratio of your weight in kilograms divided by your height in meters squared. BMI provides an estimation of your body fat level, but is in no way diagnostic. It helps healthcare providers evaluate whether you may be at risk of chronic disease due to carrying excess fat.

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USA, New Jersey, Jersey City, Doctor weighing female patient (10-11)

Is There an Ideal Weight for an 18-Year-Old?

Teenagers develop at different rates and can have widely differing heights by the age of 18, so you won't find an ideal weight for every 18-year-old. It's possible, however, to determine a range of healthy weights for those at this age based on height and gender.

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heavy weight deadlift

Benefits Of Powerlifting

Powerlifting, a strength sport where you compete in the squat, bench press and deadlift, allows you to build muscle and burn fat. Powerlifting, like other forms of heavy resistance training, strengthens your skeleton and reduces your risk of injury in other sports and activities.

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Woman looking in mirror

How to Slow Down Your Metabolism and Gain Weight

If you want to change your weight, there’s good news: your metabolic rate isn’t fixed for life. Metabolism can and does change over time, and you can take steps to speed it up or slow it down. If you intend to start gaining weight, see your doctor before you begin to hammer out details of a healthy plan to follow.

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man holding a knife and fork next to the plate

Does Fasting Speed Up Metabolism?

Losing weight requires you to eat fewer calories than you burn, so it seems logical that eating no calories would lead to the quickest loss. Fasting, however, does not speed up your metabolism -- and may actually backfire by slowing down your metabolic processes to compromise your ability to successfully drop pounds.

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Causes of Elevated Lipase

Lipase is an enzyme that is found in several different places in the body, including the pancreas, intestines, and liver. In the pancreas, lipase helps in digestion of food by breaking down components of fat called triglycerides into smaller molecules that can be easily absorbed. According to the website Healthline.

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Woman measuring herself

How to Calculate BMI Using Waist and Hip Measurements

You can't actually calculate your body mass index, or BMI, using your waist and hip measurements. These two measurements are used to calculate your waist-to-hip ratio, or WHR, which can be helpful for determining whether you're carrying your weight in a healthy way.

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Woman's feet on weight scale

How Do I Know If I'm Gaining Muscle Weight or Fat Weight?

When you weigh yourself, the scale cannot differentiate between muscle, fat, water, bone or internal organs. In fact, a scale doesn't know if you are human being or a bag of rice. If you have recent weight gain, it's important to know if it's muscle or fat.

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man making incremental weight gain

The Average Weight for Men Based on Height

The average weight for men of different heights varies by country, and the average isn't necessarily a healthy weight. Two men of the same weight and height may also look very different, depending on how much of their weight comes from muscle versus from fat.

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Young woman flexing bicep in gym, close-up, side view

Arm Circumference & BMI Comparison

When you can't determine the height of a patient, upper arm circumference can help calculate his body mass index. Body mass index, or BMI, gives a caregiver an estimation of a patient's body fat level.

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Handsome muscular young man in gym

How to Calculate BMI for a Bodybuilder

Many medical providers use body mass index, or BMI, to assess your weight and health risk. BMI is a calculation of a person's weight in kilograms divided by the square of his height in meters. A BMI below 18.5 is considered underweight, 18.5 to 24.9 is normal, 25 to 29.9 is overweight and 30 or above is obese.

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The Average BMI in Men

The average body mass index (BMI) in men between the ages of 20 and 74 has increased from 25.1 in the early 1960s to 27.9 between 1999 and 2002, the last year there was a National Health and Nutrition Examination Survey. Men 75 and over weren’t sampled until 1988, but their BMI has also increased.

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Normal Prostate Weight

Your prostate gland -- found at the base of your bladder -- is normally the size of a walnut. It can become larger with age, causing uncomfortable urinary symptoms such as the sensation of being unable to completely empty your bladder.

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Close-up of mother breastfeeding baby girl (6-12 months)

Reasons for Breast Lactation

The breasts are made up of a series of structures called lobules, connected to the nipple by a series of ducts, and surrounded by fat and connective tissues. Lactation, the release of milk from the breast, occurs upon the maturation of cells within the lobules.

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girl jumps at empty gym

What Is the Role of ATP in Metabolism?

ATP is short for adenosine triphosphate, a crucial chemical in human metabolism that has been called "chemical currency" because the cells use it as a direct source of energy.

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