Showing posts with label BMI. Show all posts
Showing posts with label BMI. Show all posts

Sunday, 25 March 2012

Sedentary life amplifies obesity genes, says US study

An obese women walks down the street on Michigan Avenue in Chicago, Illinois, USA. (AFP FILE PHOTO/JEFF HAYNES)An obese woman walks down the street on Michigan Avenue in Chicago, Illinois, USA. (AFP FILE PHOTO/JEFF HAYNES)


WASHINGTON: A sedentary lifestyle can amplify a genetic disposition to obesity, but just walking briskly, and briefly, each day can cut that effect in half, a new study showed on Wednesday.

"This is the first study that directly looked at the effect of the sedentary behaviour of television watching on the body mass index (BMI) of individuals with a genetic predisposition to obesity," said study author Qibin Qi at a conference by the American Heart Association this week in San Diego, California.

To combat the results, Qi said a one-hour daily walk "reduced the genetic influence towards obesity, measured by differences in BMI by half." 

The study involved 7,740 women and 4,564 men, with researchers collecting data on their physical activity and TV watching two years prior to assessing their BMI.

The average American watches television for about four to six hours each day, noted Qi.

The BMI indicator is the ratio of weight in kilogrammes to square of height in metres - on this scale, a score of 30 or more is considered obese.

The genetic effect on BMI was seen as "more pronounced in people who spent 40 hours a week watching television than those who spent an hour or less, 0.34 versus 0.08 kg/m2," according to the study.

The recommended walking exercise was associated with 0.06 kg/m2 reduction in the genetic effect on BMI, said researchers, who presented their report at the American Heart Association's Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism 2012 Scientific Sessions conference in San Diego.

- AFP/de 


http://www.channelnewsasia.com/stories/health/view/1189101/1/.html

Thursday, 22 March 2012

Are thin women the enemy?


From super-skinny celebrities to models with low BMI, people are speaking out about women they perceive to be too thin. But some experts worry this behaviour makes things worse.
This week, Israel passed a law banning models from advertisements or fashion shows if they measure less than 18.5 on the body mass index (BMI). It's part of an effort to promote health for women of all sizes, and to stop glorifying the ultra-thin.
"Beautiful is not underweight," says Rachel Adato, one of the creators of the bill.
In recent years, much attention has been paid to how women are portrayed in the media, whether it's an overly airbrushed magazine model with an impossibly slim waist, or a TV starlet with protruding collar bones.
In an era when pro-anorexia communities congregate on social media sites like Pinterest, it's no wonder that lawmakers are concerned with women's body image.
For sure, reducing the number of images that portray women as very thin is beneficial, says Claire Mysko, director of Proud2BeMe, a website created with the National Eating Disorders Association (Neda) to promote healthy body image.
"There is a danger in being constantly exposed to one image of beauty," she says. "There is a serious lack of body diversity in the media. People are not seeing themselves and their bodies reflected."
Israel's law may be the catalyst needed to help make change. But others say it could make things worse.
'Arbitrary' system
Many magazine editors, modelling agents and casting directors say they want to use more diverse models, but can't because of industry expectations - with each blaming the other group for setting the tone.
"They all feel trapped into producing what nobody individually espouses," says Amanda Mears, author of Pricing Beauty: The Making of a Fashion Model. "Everyone felt individually powerless."
Regulating the types of models that can be used may be a good way to "shock" the system into making changes, she says.
However, she, along with many other experts on eating disorders and body image, worry that the law is flawed.
"Bodies come in different shapes and sizes, and the very idea that there is a concrete qualifying number, and if someone can match it they're considered healthy, is wrong," she says.
BMI, a ratio of height to weight, is best used as a way to measure the average size of groups of people, but is not a good indicator of personal health, says 

What about air brushing?

The Israeli law also requires air brushing to be disclosed, similar to laws in the UK, Spain and Italy. "That's something I can appreciate," says Eric Stice, a scientist at the Oregon Research Institute. "There are a lot of women busting their butt to look like an image that nobody really looks like. Not even the models look like they're portrayed in the magazine."
More disclosure about altered images can also help facilitate conversations with children, which can help build better media savvy, says Matthew Johnson, director of the Media Awareness Network. "Knowing it is manipulated is not enough," says Mr Johnson. "Young people need to have critical thinking skills."
Margo Maine, a clinical psychologist who has specialised in eating disorders.
"It's arbitrary," she says.
"In the past I would have welcomed [the law] but I am a little leery of the judgment about the correct body type."
Limiting the types of bodies that are permitted to model or considered attractive can backfire, says Matthew Johnson, director of education at the Media Awareness Network, a media education programme in Canada.
"What would be more effective would be encouraging a wider variety of body shapes on TV and in media in general."
Otherwise, the message is not to celebrate bodies of all shapes and sizes, but to reject extreme thinness.
Toxic effect
"We have reduced women to their size," says Dr Maine, author of the The Body Myth.
"By targeting women who are thin, whether they have an eating disorder or are naturally thin, we are focusing on the individual instead of challenging the culture that buys into it."
Thin women may have an easier go of it than fat women, but they're still subject to attacks about their size. Catherine, the Duchess of Cambridge, is subjected to constant speculation about her health and comments about her weight.
Angelina Jolie's Oscar appearance last month set Twitter alight with criticisms of her thin frame. "Angelina Jolie looks like her arms are ready to snap in half at any moment. Gross," wrote one user.
Speaking out against very thin star celebrities can feel like a satisfying blow against unrealistic body standards, says Raegan Chastain.
As an advocate for fat acceptance she has often heard people criticise women for being too thin.
Still, she warns those trying to come to terms with their own size to leave other people out of it.
"If you want to push against standards, you don't do that by bashing people," she says.
"You can't look at someone and tell how healthy they are. Weight and health are two separate things."
With that in mind, Neda has advocated that models be screened for eating disorders, but not that they be prohibited from working based on a size and weight limit.
They've also launched Proud2BeMe, an extension of a Dutch website designed as a safe space to discuss body issues and health concerns.
"There are people who are naturally thin and people who are naturally heavier, and we need to accept a diversity," Ms Mysko says.
"That's the goal: not to define one body type as attractive and another type as unattractive."

Modelling laws worldwide

Models in Moscow
  • Spain: Madrid fashion week restricted models who have a BMI of less than 18 (2006)
  • Italy: Government instituted a self-policing code of conduct for the fashion industry, including requiring medical proof that models do not have eating disorders (2006)
  • UK: the Advertising Standards Authority issued guidelines about the use of digitally manipulating photos, saying they will stop ads that are misleading, including those that portray extreme thinness (2011)
  • gotquestions  http://www.bbc.co.uk/news/magazine-17453822

Monday, 20 February 2012

Gastric Bypass Surgery – A Personal Story


Gastric Bypass Surgery – The Beginning
My name is Courtney, and this is a personal account of gastric bypass surgery. I am a 25 year-old homemaker and have been an Air Force wife since June of 2000. I am the survivor of morbid obesity.

My health problems began shortly after I returned from my honeymoon. I began to feel sick most of the time, and I started gaining weight in leaps and bounds. I assumed that it was the new birth control pills that I had been prescribed shortly before my marriage. When my husband and I had talked about it and on Christmas Eve, we chose to go off birth control rather than try a new dose. We were eager to start a family. I conceived almost immediately, and shortly thereafter suffered my first miscarriage. Although it was heartbreaking we didn’t yet know that there was something seriously wrong.

Within one month of my first miscarriage I had an ophthalmologist appointment. They did all of the normal tests and things they do, and then they dilated my eyes. Do you know how frightening it is for a doctor to look into your eye, the window of your soul, and declare, “Oh, that is not good”? I do. They rushed to take pictures of my retinas and to do some kind of documentation. They sat me down and told me that I had a disease called Pseudotumor Cerebri (PTC). It is basically a buildup of spinal fluid in your brain that presses against your optic nerve and acts as a tumor. They believe that because of the way this ”tumor” was pressing on my brain, it caused my miscarriage.

They believed that I would be on medication and probably spinal taps for the rest of my life. My neurologist put me on a medication to reduce the production of spinal fluid that made my hands, feet, face, and sometimes legs go numb and tingly. It also made me dizzy and caused me to forget things. It wasn’t until they took me off of this medication a year later that they found out the damage was permanent. They told me later that one of the rare side effects of this medication is that it can literally burn holes in your memory similar to the effects of long term ecstasy use. There are childhood memories that I have no recollection of. My sisters will start a story, “Remember that time……?” and as hard as I try I have no idea what they are talking about. Those memories will never come back.


Gastric Bypass Surgery – The Weight Gain
Shortly after I was diagnosed with this disease, I began gaining weight. I was scared, as I had been told that the Pseudotumor can become complicated with quick weight gain. I gained over 100 pounds in just under three years and there was no way to stop it. I did all the doctor recommended diets, pills, exercises, you name it. Nothing worked.


Then in February of 2002, I was diagnosed with Polycystic Ovarian Syndrome (PCOS). I was then diagnosed with hypothyroidism. I was sent to a new doctor, one that specialized in PCOS treatment. He was aggressive. He started me on a medication that was created for diabetic patients but that had been effective in the treatment of overweight women who had PCOS. It made me constantly sick and did nothing else. He believed that the medication couldn’t work because of all the other problems that were surfacing.


In September of 2003, I conceived again. I was assured that people of my size could carry a healthy baby to term with supervision. Not with my complications however. I miscarried for the second time the day after my 23rd birthday. Devastated doesn’t begin to describe how I was feeling.


Then in May of 2004 I was diagnosed with high blood pressure. My doctor then discovered that my PCOS was insulin resistant. When you eat, your body breaks down the nutrients in the food, and your insulin rushes those nutrients to your cells. Insulin resistant means that my cells rejected my own insulin. So my body kept telling me that I was hungry when in reality all the food I ate was going to my fat stores. I was gaining weight by leaps and bounds but my body wasn’t getting any nutrients. I was literally starving to death. My doctors finally gave up. That is when I was told I would be diabetic within a few years and would probably be dead by the time I was thirty. I had so many things wrong that all the medications couldn’t work. I was literally dying while taking 9 prescription medications. Every disease and syndrome was now compacted by the fact that I was now morbidly obese with five comorbidities. My doctors opted to go drastic. Given that I was 24, could not conceive, and had just been told I wouldn’t last more than another six years or so in my current condition, I was okay with drastic.


Gastric Bypass Surgery – The Surgery
My doctors recommended me for a RuenY Gastric Bypass surgery. I began going through the process and praying intensely about it with my family. The surgery took place on December 27th of 2004. It was four years and three days since the day we had thrown out the birth control.


Throughout all of this, I have received many questions about why I continued to have faith in the face of these odds. My answer would be that through it all God has always been faithful. As I look back over the last five years of my life I can see the path that I was choosing for myself and the path God had for me. I can see that His way was not my way, but His way was best. In the face of adversity, He held me up. When He knew I could not walk alone on the path that was before me, He sent me my husband to walk with me.


There were certainly dark moments -- moments when I found myself angry at God for all the things that I believed He was letting me go through; moments when I felt so alone, but never actually was. He held me in His arms when I wept over my lost children, and when I looked in the mirror and saw only an obese woman.


Just as in the book of Daniel and the story of Shadrach, Meshack, and, Abednego, I was thrown into a fire and tested. Just as in that story, the fire could not burn me because God was beside me. The fires of this world only have the power to burn away the bindings of this world. God has walked with me every step of the way.
Gastric Bypass Surgery – The Results
It has now been just over a year, and my gastric bypass surgery was a complete success. I had no complications and never became ill. I’ve been taken off of all the medications I took previous to the surgery, and have lost 135 pounds and nine dress sizes. I feel like I have become brand new.

These Bible verses have been a light in the darkest times in my life. I have clung to them throughout the last five years, and I cling to them still. 
allaboutlifechallenges.org

“Do not be afraid, for I have ransomed you. I have called you by name; you are mine. When you go through deep waters and great trouble, I will be with you. When you go through rivers of difficulty, you will not drown! When you walk through the fire of oppression, you will not be burned up; the flames will not consume you. For I am the LORD, your God, the Holy One of Israel, your Savior” (Isaiah 43:1-3).

“For I know the plans I have for you," says the LORD. "They are plans for good and not for disaster, to give you a future and a hope” (Jeremiah 29:11).
 

Courtney experienced God’s peace as she went through these life-threatening illnesses. Do you desire this same peace in your life?

allaboutlifechallenges.org