6 WAYS OBESITY CAN WEIGH ON THE BRAIN

Obesity not only impacts your physical health; it also impacts your brain. An assistant professor at Texas A&M Health Science Center School of Public Health, who’s received National Institute on Aging funding to study obesity’s effects on brain function in seniors, notes obesity can change the structure of the brain and cause atrophy.

1.     A higher BMI is associated with poorer episodic memory – or difficulty recalling past events – in young adults ages 18 to 35. The findings in a research article published in The Quarterly Journal of Experimental Psychology suggested that people who are overweight may experience memory slightly less vividly or in less detail. Other evidence indicates memory plays an important role in regulating what we eat; and clouded memory can make it harder to watch what one eats and lose weight.

2.     Midlife obesity is associated with a higher risk of dementia. Being obese in one’s 40’s through 60’s is associated with a higher risk of dementia as you age. It’s linked to an increased risk of Alzheimer’s, the most common form of dementia, and a leading cause of death in the US. The true cause is not clear, but it is clear that added pounds negatively affect cardiovascular health, which plays a significant role in brain function.

3.     Obesity in older individuals is associated with changes in brain activity that affect neuromuscular function – including making it harder to grab/grasp onto things. If your grip is not reliable, people can become a much higher risk of falls. It should also be noted, in studies where this information was proposed, obese individuals’ grasping ability was further impaired under stress.

4.     Researchers found obese subjects also expended more mental resources when walking, even though they were able to walk as well as non-obese test subject. And stress further taxed the brain of obese individuals, compared to their normal-weight counterparts. In addition to the physical challenge, the added mental burden of obesity might also lead individuals to tire more quickly.

5.     Being overweight may dull your ability to experience pleasure. One previous study published in the Journal of Neuroscience noted that an area of the brain called the striatum was less activated in women after they had gained weight. The striatum plays a key role in encoding the reward we get from eating certain foods, like those high in sugar that are associated with the release of the brain chemical dopamine, causing us to feel pleasure. In addition to high-fat, high sugar diets leading to being overweight has been associated with this same dulling effect, which experts say can lead a person to overeat to regain that fleeting sense of pleasure.

6.     Obesity raises the risk of depression, and depression can raise the risk of obesity. We definitely know it contributes, and it may also contribute to bipolar disorder.

Health experts say losing weight typically has a positive impact on brain health. Lifestyle changes, including partaking in a heart-healthy diet and exercising regularly, have also proven a beneficial strategy to optimize mental function. As the obesity epidemic rages on, more studies are underway to shed light on those negative effects – and to shed light to help us better understand how to prevent or reverse them. 

1/3 OF THE WORLD IS WHAT?

If you're overweight or obese, you're definitely not alone. In fact, new research shows there are billions of people just like you – and it's concerning the public health community.

A New England Journal of Medicine study, published Monday, finds that more than 2 billion people – or one-third of the world's population – fall into the obese-or-overweight categories, CNN reports. What's more: Their weight is causing them to endure health problems.

The New York Times reports the per capita death rate has ticked up 28 percent since 1990, and40 percent of these deaths occurred among overweight people not heavy enough to be obese. In 2015, extra weight was a factor in 4 million deaths from conditions such as heart disease and diabetes.

More than 710 million people are considered obese, which translates to 10 percent of the global population.

For the purposes of the study, being obese meant having a body mass index of 30 or higher, while being overweight was defined as having a BMI between 25 and 29. The Institute for Health Metrics and Evaluation at the University of Washington led the Gates Foundation-backed study.

The U.S. earned the dubious distinction of having the highest percentage of obese children and young adults relative to the overall population (13 percent), while Egypt had the highest percentage of obese adults, with nearly 35 percent.

Looking beyond percentages at the actual numbers: The U.S. was home to the most obese adults (79.4 million), and China was home to the most obese children (15.3 million).

These findings are unsettling to experts, who worry about the health consequences of the world's expanding waistline. "People who shrug off weight gain do so at their own risk – risk of cardiovascular disease, diabetes, cancer, and other life-threatening conditions," Dr. Christopher Murray, study author and director of the Institute for Health Metrics and Evaluation at the University of Washington, told CNN.

Researchers used data from the Global Burden of Disease study in their analysis, which included 68.5 million people tracked between 1980 and 2015. They reported that in 73 countries, the obese population had doubled since 1980. Women had higher obesity levels than men no matter the age group, a finding that echoes previous research.

So, what comes next?

"We need to control the consequences of obesity much better globally ... and help people who are obese to lose weight," Goodarz Danaei, a professor at the Harvard T.H. Chan School of Public Health who didn't work on the study, told CNN. "That's where we need research and public health interventions."

But such interventions could prove complicated, particularly when it comes to increasing access to healthy food. "Unhealthy foods cost less; healthier foods often cost more. People eat what they can afford," Adam Drewnowsk, director of the Center for Public Health Nutrition at the University of Washington, told The New York Times. He also didn't work on the study.

It remains unclear what rising obesity rates mean for children. "We don't really know what the long-term effects will be if exposed to high BMI over 20, 30, 40 years," Danaei told CNN. "It may be larger than we have already seen."

EXTRA STEPS CAN HELP REDUCE RISK OF DIABETES AND STROKE

Individuals at risk for diabetes can cut their risk for heart attack or stroke by 8% by taking an extra 2,000 steps a day—equivalent to about 20 minutes of moderately paced walking—according to a study of more than 9,000 adults performed by researchers at the University of Leicester and published in the Lancet.

"Two thousand steps seemed to be the magic number," TIME reported ("How Many Steps Does it Take to Avoid a Heart Attack? Researchers Find Out" - December 19, 2013). "Even before the study began, for every 2,000 steps a day one participant tended to walk on average compared to another, he enjoyed a 10% lower rate of heart problems by the end of the year."

Visit www.apta.org for more information! 

8 MILLION AMERICANS DON'T KNOW THEY HAVE WHAT?!

According to the US Centers for Disease Control and Prevention (CDC), a quarter of those in United States living with diabetes do not know they have it. 

An estimated 29.1 million people (9.3%) in the US have diabetes, but roughly 8.1 million of them (27.8%) haven’t been diagnosed. This information, along with a number of other new diabetes statistics, is featured in the CDC’s 2014 National Diabetes Statistics Report, which is based on data from 2012.

The report also found that the diabetes rate for Hispanics (12.8%), non-Hispanic blacks (13.2%), and Native Americans/Alaska Natives (15.9%) were markedly higher than the 7.6% rate of non-Hispanic whites. The diabetes rate among Asians was 9%.

Type II Diabetes, or the type of Diabetes that's acquired by habits and lifestyle choices, is largely correlated with the obesity epidemic that's been taking over the United States for the past 30 years. According to NHANES, almost 70% of Americans are considered to be overweight or obese, as of 2014 - and almost 34% of children are considered to fall within the same category. In 2013, the CDC had to come up with a new category of obesity to accommodate the number of children who were so far off the chart for age and sex-related BMI statistics, that they had to create a "Severely Obese" category, in which children fall within 120 - 160% of the 95th percentile for weight in children their age and height. 

The obesity epidemic is REAL, and it's costing more lives than we realize. In 2015, life expectancy decreased for the first time in almost 40 years, and obesity plays a HUGE role in that. 

Being healthy is a lifestyle choice - one YOU can make for a better future for you and your children!