For years, body mass index (BMI) has been the measure of health that millions of us focus on when it comes to determining our health.

But now, experts say we should focus on the “body curvature index” (BRI), which gives us a better indicator of the fat we should be most concerned about: the fat around our vital organs.

BMI is a simple calculation that uses your height and weight to tell you if you are too big for your height.

In contrast, the BIS is more complex and uses a detailed, multi-step formula to compare your height to your waist measurement.

But now MailOnline has created a simple tool that does the heavy math for you, providing a BRI result between zero and 20 using your height and waist measurement.

According to studies that have verified the measure, a “healthy” result is between 0.3 and three. However, getting this result suggests that you are in a minority.

According to national averages, most adult Brits have a BIS of 3.8, putting us in the unhealthy category.

Although BMI has been used for years, it has its flaws. For example, it can’t distinguish between muscle and fat in people’s weights, meaning it bizarrely calculates that chiseled wrestler-turned-actor Dwayne “The Rock” Johnson is technically obese.

Instead, some experts say what you should be looking at is your “body curvature index.”

Even the NHS now advises people using its BMI calculator to also look at the shape of their waist.

“It is advisable to measure your waistline to find out if you have too much fat around your stomach,” the health service advice says.

The potential importance of a healthy BRI, a term coined only about a decade ago, has been supported by studies.

A Chinese study this year found that people with a higher IBR had up to a 163% higher risk of heart disease than those with a thinner waist.

Professor Brendon Noble, an expert in regenerative medicine and life sciences at the University of Westminster, said BIS was a potential indicator of toxic fat clumping around vital organs in the abdomen, which, according to research, is strongly linked to a multitude of health problems.

These include heart disease, cancer and premature death.

“Many studies suggest that the more body fat you have, the more prone you are to it,” he said. The telegraph.

Some experts prefer BIS over BMI because it focuses on the type of fat of greatest concern: visceral fat.

According to the BMI system, a score of 18.5 to 25 is healthy. A score of 25 to 29 is considered overweight, and more than 30 means a person is obese, the stage at which disease risks skyrocket.

Hollywood piece or Hulk? Muscular celebrities like Dwayne “The Rock” Johnson, Vin Diesel and Arnold Schwarzenegger are considered obese according to the body mass index formula that is widely used by health authorities around the world. Some scientists now believe that it should be replaced. Mr Schwarzenegger’s figures come from his ‘heyday’ as a bodybuilder

Also called “skinny fat,” because people with an overweight BMI may have excess visceral fat around our internal organs.

Although the BIS does not measure visceral fat as accurately as a CT scan, it is a low-cost indicator that people may need to improve their diet or increase their physical activity.

Professor Noble said: “We still have a lot to learn about fat and its impact on our health… but visceral fat appears to be more dangerous than subcutaneous fat, research shows.”

Experts have previously criticized BMI as a measure of health.

Conceived by a Belgian mathematician in the 1830s, doctors have relied on BMI for nearly two centuries.

One flaw is that it is unable to differentiate between fat distribution and muscle mass.

This means that a fit rugby player and a couch potato of exactly the same height and weight share the same scores – even if the former has a ripped physique and the other carries a spare tire.

It is well established that obesity increases the risk of serious health problems that can damage the heart, such as high blood pressure, as well as cancers.

Being too fat is estimated to cause one in 20 cases of cancer in Britain, according to Cancer Research UK.

Britain’s obesity crisis is also estimated to cost the country almost £100 billion a year.

This colossal figure includes damage to the health of the NHS as well as secondary economic effects such as lost income from people missing work due to illness and premature death.