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Body Mass Index

Body Mass Index is a calculation based on a person's weight and height that is a good indicator of whether they are overweight, underweight or normal.

706 Questions

Is 140 pounds normal weight for a 12 year-old who is 5'5?

For a 12-year-old there is no "normal" or perfect weight. Weight is related to height and body composition rather than age. Therefore, we would need to know your height, and whether you are muscular or not, in order to answer your question. For in-depth information about weight in relation to height, and to see the distribution of weights and heights of children at various stages, please see the page link, further down this page, listed under Related Questions.

What is an average bmi for a 50 year old woman?

under 18.5 is underweight18.5-24.9 is aceptable25-29.9 is overweightover 30 is obese

What is BMI?

BMI is a commonly used acronym for "Body Mass Index", which is an estimation of body fat based on height and weight.

The accuracy of BMI calculation methods is rather controversial due to errors caused by it's simplistic approach.

For doctors and others involved in the medical industry it is the most commonly used diagnostic to identify weight problems (too high or too low) because of the simple calculation needed to find one's BMI.

How much protien should you have in a day?

A person weighing in at about 150lbs. should take in around 55grams of protein a day
According to the Institute of medicine we need 0.8 grams of protein for every kilo of body weight.

Link attached for more info.

What happens if obesity is left untreated?

Some of the many increased serious health risks associated with obesity are:

  1. Heart disease and heart attacks
  2. Strokes and high blood pressure
  3. Colon cancer (now associated with excess fat consumption in the diet)
  4. Degenerative joint disease (arthritis), sometimes crippling and leading to a need for joint replacement
  5. Insulin resistance
  6. Diabetes mellitus (high blood sugars), with a long list of related complications in the circulatory (heart), renal (kidney), neurological (nerves), retinal (visual) systems and with infectious diseases and problems with healing
  7. Depression (obese patients are typically inactive which can lead to increased incidences of chronic clinical depression that could be treated and greatly improved with exercise)
  8. Bad self image
  9. Negative thoughts
  10. Breathing difficulties
  11. Chronic fatigue
  • Obesity can be very serious and even cause death. Pay attention especially if the weight is around your waist since it does affect heart and circulatory health to have it located there. Often obese people have high cholesterol and triglycerides, which can lead to strokes and heart attacks. Type II Diabetes and high blood pressure are additional risks. Obesity also affects mobility and ease of movement, which as you get older increases the risks of complications and falling.
  • Eliminating or seriously limiting refined processed carbohydrates (apart from the occasional treat), coupled with cardio exercise, such as cardio walking, can help to reverse obesity. The diseases, often referred to as diseases of Western civilization, such as hypertension, heart disease, obesity, diabetes, dental caries, and others, became pervasive in the twentieth century primarily because of a diet high in refined carbohydrates. For example, from around two-and-one-half million years ago until the Agricultural Revolution around ten thousand years ago grains were not consumed by our ancestors. Many people have a problem with these foods because our bodies are extremely similar to the bodies of our hunter-gatherer ancestors. Less than 1/10th of 1% of our genes have changed in the last 10,000 years. It is not that long ago in terms of evolution. If you are unsure what refined processed carbohydrates are, you will find a list further down this page, listed under Related Questions.
  • If you are significantly overweight, you need to avoid further weight gain and you need to lose weight. Excess body fat is a lot to carry and hard on your heart. Your lungs have to work harder, too.
  • The correct weight for a person is related to BMI (body mass index). This can be measured for you. Alternatively, to determine your percentage of body fat at home, obtain some plastic body fat calipers and do a simple skin-fold test. Body fat calipers are not expensive and they are readily available to buy.
  • See the Related Links section below for information about BMI and calculating your BMI from your height and weight using the Centers for Disease Control and Prevention (CDC) BMI calculators. BMI, Body Mass Index, can help you determine if you are considered overweight for your height and, if so, to what extent (e.g., underweight, normal weight, overweight, obesity, or morbid obesity.) There is also much more information about obesity in adults and children at that section of the CDC site.

What is the BMI reading for obese?

Obesity is defined as a BMI of 30 or higher, with 40+ being morbidly obese. Since muscle mass of children does not fluctuate as much as in adults, this is usually a fairly good representation of obesity.

However, there are notable exceptions and the best way to figure if a child is obese or not is to use body fat percentage calculators. There are a million if you search google.

*Calculate BMI by taking the weight in kg divided by the height in meters squared. For example, 60kg/(1.5m^2).

Which BMI score listed below is considered obese?

BMI above 30 indicates obesity.

BMI between 25 and 30 indicates overweight.

BMI below 25 is desirable for most people.

Please note that BMI is a fairly limited tool and should not be used as an exclusive means to diagnose obesity.

What makes us fat or thin?

People can become obese from many causes:

  • Overeating and not burning off the calories consumed
  • Sleep Apnea
  • Genetic Disposition
  • Diseases and Conditions that contribute to obesity (Cushing's Disease)
  • Hormonal Dysfunction (Adrenal Glands, Thyroid, etc)
  • Disability (unable to exercise)
  • Eating Disorder
  • Cardiovascular or Respiratory Disorder
  • Injury

What can cause dramatic weight gain?

When your body is not producing enough of the hormone,lepsin,you'll tend to have huge appetite and never seem to eat enough...lol...so if you're overweight especially,I do recommend you to go for a lepsin jab which cost around USD 200 each.

What does your body mass index measure?

BMI actually tells you almost nothing.BMI is a discredited attempt at equating weight and height which is not accepted by dieticians. Aside from the obvious reliance of the calculation on the square of the height (rather than the cube of the height) to the mass which disadvantages taller people, clinical studies on individuals with various BMI values with heat disease and similar problems showed no correlation.

BMI is a measure of body fat and stands for?

it is a average of your weight either over or under the average weight of people your height .

What does it mean if your bmi is too low?

They are underweight and need to gain weight

How many pounds can you lose in a one mile run?

On average, you burn about 100 calories for each mile you run. However, it varies depending on factors like age, how much you weigh, how fast you run, etc. For example, a heavier person will burn more calories than someone who is already fit. Also, the faster you run, the more calories you burn.

How do I figure out what my proper body weight should be?

by using this equation (your wight/your tall in meter square)

if you got 25 or less little it is great if got above your weight is hi

and there a scheduled for that

example ( 75 kg / (1.75*1.75) = 24.5 and this means almost perfect

or use this simple calculations

for men

take a meter from your tall in meter and it will be your perfect wight in kg

example your 175 cm means 75 kg

example 169 cm means 69 kg

for women

take a 1.05 meter (one meter and 5cm) from your tall in meter and it will be your perfect wight in kg

example your 175 cm means 70 kg

example 169 cm means 65 kg

this is accurate by 85%

What is the healthy weight of a 74 year old women 5 feet 5 inches tall?

There is no specific healthy weight for a 77-year-old woman (or a woman of any age). Weight is related to height and body composition rather than age. What counts more than weight is body fat percentage. For more information, see the page link, further down this page, listed under Related Questions.

What does fat feel like?

The feeling of losing weight quickly is probably satisfying to almost everyone because humans always try to look for that quick fix. However, losing weight quickly does have its consequences. If a person has lost a lot of weight quickly, chances are they did not do it in a healthy way. This puts them at a risk of gaining a lot of weight back and very fast.

Why does BMI not always work?

BMI can be inaccurate in some cases, because people with a lot of muscle mass will be classified as "overweight" or "obese" according to BMI, when in reality, they're actually not at all. Muscle is more compact and a lot more dense than fat is, so a 250-pound bodybuilder will obviously look (and be) healthier than a 250-pound sedentary guy.

What does a BMI number mean?

Whether or not your weight falls within a healthy range.

How many calories should i consume with a BMI of 22.3?

Your question is ambiguous as this link shows: http://en.wikipedia.org/wiki/Body_mass_index

A person who is 4'10" & 100 lbs has a BMI of 21 as well as a person who is 7' & 210 lbs.

What exercises can a 13 year old do to get in shape?

I'm turning 13 in about a week. I don't know the exact number but I would say I get at least 1:30 to 2:00 per day. I'm very sporty and if you play some type of active sport during your lunch period, then you get a good amount of exercise. Also, most schools have after school sports available.

What is a healthy BMI for 5FT7IN 38 year old female?

This is hard to say, since WHO (World Health Organization) only gives values per country and show that what amount of the population is overweight and underweight. The average value is very hard to find since it is very nation specific. For example in Finland 52.7 percent of the female population are in normal weight range, which tends to make their average BMI higher, while in the USA 32.4 percent of the female population are in the normal weight range, so their average BMI is directly lower.

What is my bmi?

The formula is complex, but you can use an online bmi calculator.

What is body mass index described by?

A number that is used to judge whether a person is at a healthy weight for his or her height