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BMI rethink
Hammersmith Hospital in London is the only hospital in the UK using the fat-revealing scan. Its reseachers estimate up to 40 percent of us may have worrying fat deposits around our heart, liver or pancreas.
This revealation may now lead to a new way of understanding and measuring obesity. To date it has been calculated using the body mass index (BMI - calculated by dividing your weight in kilograms by your height in m2). A BMI of 20 to 25 is considered normal, 25 to 30 overweight and more than 30 obese. However, in the light of the new findings, some experts feel this is too simplistic. Professor Bell says it's possible to have a normal BMI and still have huge amounts of internal fat. Indeed, scans have revealed apparently thin people carrying up to seven litres of fat; ideally you should have just one litre.
"One of the problem of with BMI is that it gives you the wrong information of how much fat you have," says Professor Bell.
"Unfortunately, unless you have a body scan, you just can't tell how much internal fat you might have - you can merely do your best to prevent it by exercising aerobically for at least two hours a week." For example, studies show that although Sumo wrestlers have massively high BMI counts up to 56, they still have little internal fat - their fat is more safely deposited just under the skin. So although, you may have BMI of 20, a waist measurement of 24 inches and can just about squeeze into a size 6 pants, you could be storing more fat than a Sumo wrestler!
Banish internal fat
So preventive action in the form of two to three hours of cardiovascular exercise a week is the best antidote. A healthy, balanced diet is crucial, but it's not enough.
"The important message is that people shouldn't be happy just because they look thin," says Professor Bell. "It's not about looking fit or thin, it's about being healthy. You can look healthy but still have a lot of fat internally, which can have a detrimental effect. When you exercise you tend to burn the internal fat - which is why exercise is crucial."
Researh backs this up. A study at Fred Hutchinson Cancer Research Center in Seattle, US, studied 173 women over a year - half did aerobic exercise and half did streching exercises. Those raising their heart rate regularly significantly reduced the fat stored deep in their abdominal area, without making any changes to their calorie intake.
"Women got the most benefit if they did the full programme - 45 minutes a day, five days a week - but they still benefited if they did as little as 30 minutes," says the report. The researchers believe the results will help add years to a person's life.
In the UK, the Hammersmith Hospital team of scientists plans further studies to establish exactly what types and frequency of exercise are best for burning internal fat. Groups of people will be put through 16-week programmes of exercise of different intensities and frequencies. Their fat levels will be frequently monitored with MRI scans and compared with control groups. It's hoped this will lead to more accurate advice about how we should exercise, based on our gender and genetic make-up.
"One thing we already know, however, is that diet alone isn't enough - you need to exercise," says Lang. "Whatever you do, whether it's jogging, swimming, playing tennis or going to the gym, you need to do something regularly that raises your heart rate and keeps internal fat at bay."
In the end, the message from me through this article is Exercise!Don't ever think that you are thin so you are out from fat-related diseases..Just remember to exercise!That's all~I am in too..maybe I have about 7 litres of fat in my body now cause I just stuffed in some fried chicken into my stomach=)
Don't ever be like me~~
BMI rethink
Hammersmith Hospital in London is the only hospital in the UK using the fat-revealing scan. Its reseachers estimate up to 40 percent of us may have worrying fat deposits around our heart, liver or pancreas.
This revealation may now lead to a new way of understanding and measuring obesity. To date it has been calculated using the body mass index (BMI - calculated by dividing your weight in kilograms by your height in m2). A BMI of 20 to 25 is considered normal, 25 to 30 overweight and more than 30 obese. However, in the light of the new findings, some experts feel this is too simplistic. Professor Bell says it's possible to have a normal BMI and still have huge amounts of internal fat. Indeed, scans have revealed apparently thin people carrying up to seven litres of fat; ideally you should have just one litre.
"One of the problem of with BMI is that it gives you the wrong information of how much fat you have," says Professor Bell.
"Unfortunately, unless you have a body scan, you just can't tell how much internal fat you might have - you can merely do your best to prevent it by exercising aerobically for at least two hours a week." For example, studies show that although Sumo wrestlers have massively high BMI counts up to 56, they still have little internal fat - their fat is more safely deposited just under the skin. So although, you may have BMI of 20, a waist measurement of 24 inches and can just about squeeze into a size 6 pants, you could be storing more fat than a Sumo wrestler!
Banish internal fat
So preventive action in the form of two to three hours of cardiovascular exercise a week is the best antidote. A healthy, balanced diet is crucial, but it's not enough.
"The important message is that people shouldn't be happy just because they look thin," says Professor Bell. "It's not about looking fit or thin, it's about being healthy. You can look healthy but still have a lot of fat internally, which can have a detrimental effect. When you exercise you tend to burn the internal fat - which is why exercise is crucial."
Researh backs this up. A study at Fred Hutchinson Cancer Research Center in Seattle, US, studied 173 women over a year - half did aerobic exercise and half did streching exercises. Those raising their heart rate regularly significantly reduced the fat stored deep in their abdominal area, without making any changes to their calorie intake.
"Women got the most benefit if they did the full programme - 45 minutes a day, five days a week - but they still benefited if they did as little as 30 minutes," says the report. The researchers believe the results will help add years to a person's life.
In the UK, the Hammersmith Hospital team of scientists plans further studies to establish exactly what types and frequency of exercise are best for burning internal fat. Groups of people will be put through 16-week programmes of exercise of different intensities and frequencies. Their fat levels will be frequently monitored with MRI scans and compared with control groups. It's hoped this will lead to more accurate advice about how we should exercise, based on our gender and genetic make-up.
"One thing we already know, however, is that diet alone isn't enough - you need to exercise," says Lang. "Whatever you do, whether it's jogging, swimming, playing tennis or going to the gym, you need to do something regularly that raises your heart rate and keeps internal fat at bay."
In the end, the message from me through this article is Exercise!Don't ever think that you are thin so you are out from fat-related diseases..Just remember to exercise!That's all~I am in too..maybe I have about 7 litres of fat in my body now cause I just stuffed in some fried chicken into my stomach=)
Don't ever be like me~~
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