Obesity is a medical condition that occurs when a person carries excess weight or body fat that might affect their health. A doctor will usually suggest that a person has obesity if they have a high body mass index.
Body mass index (BMI) is a tool that doctors use to assess if a person is at an appropriate weight for their age, sex, and height. The measurement combines height and weight.
A BMI between 25 and 29.9 indicates that a person is carrying excess weight. A BMI of 30 or over suggests that a person may have obesity.
Other factors, such as the ratio of waist-to-hip size (WHR), waist-to-height ratio (WtHR), and the amount and distribution of fat on the body also play a role in determining how healthy a persons weight and body shape are.
If a person does have obesity and excess weight, this can increase their risk of developing a number of health conditions, including metabolic syndrome, arthritis, and some types of cancer.
Metabolic syndrome involves a collection of issues, such as high blood pressure, type 2 diabetes, and cardiovascular disease.
Maintaining a healthy weight or losing through diet and exercise is one way to prevent or reduce obesity. In some cases, a person may need surgery.
Now read on to find out why obesity happens.
When a person consumes more calories than they use as energy, their body will store the extra calories as fat. This can lead to excess weight and obesity.
Also, some types of foods are more likely to lead to weight gain, especially those that are high in fats and sugars.
Foods that tend to increase the risk of weight gain include:
Some processed food products contain high-fructose corn syrup as a sweetener, including savory items, such as ketchup.
Eating too much of these foods and doing too little exercise can result in weight gain and obesity.
A person who consumes a diet that consists mainly of fruits, vegetables, whole grains, and water is still at risk of gaining excess weight if they overeat, or if genetic factors, for example, increase their risk.
However, they are more likely to enjoy a varied diet while maintaining a healthy weight. Fresh foods and whole grains contain fiber, which makes a person feel full for longer and encourages healthy digestion.
Many people lead a much more sedentary lifestyle than their parents and grandparents did.
Examples of sedentary habits include:
The less a person moves around, the fewer calories they burn.
Also, physical activity affects how a persons hormones work, and hormones have an impact on how the body processes food.
Several studies have shown that physical activity can help to keep insulin levels stable and that unstable insulin levels may lead to weight gain.
Researchers who published a review in BMJ Open Sport and Exercise Medicine in 2017 noted that, while the designs of some studies make it hard to draw exact conclusions, A lifestyle incorporating regular [physical activity] has been identified as a key factor for maintaining and improving many aspects of health, including insulin sensitivity.
Physical activity need not be training in the gym. Physical work, walking or cycling, climbing stairs, and household tasks all contribute.
However, the type and intensity of activity may affect the degree to which it benefits the body in the short- and long-term.
Research has suggested that missing sleep increases the risk of gaining weight and developing obesity.
Researchers reviewed evidence for over 28,000 children and 15,000 adults in the United Kingdom from 1977 to 2012. In 2012, they concluded that sleep deprivation significantly increased obesity risk in both adults and children.
The changes affected children as young as 5 years of age.
The team suggested that sleep deprivation may lead to obesity because it can lead to hormonal changes that increase the appetite.
When a person does not sleep enough, their body produces ghrelin, a hormone that stimulates appetite. At the same time, a lack of sleep also results in a lower production of leptin, a hormone that suppresses the appetite.
A team from the University of Barcelona published a study in the World Journal of Gastroenterology that provides clues as to how liquid fructose a type of sugar in beverages may alter lipid energy metabolism and lead to fatty liver and metabolic syndrome.
Features of metabolic syndrome include diabetes, cardiovascular disease, and high blood pressure. People with obesity are more likely to have metabolic syndrome.
After feeding rats a 10-percent fructose solution for 14 days, the scientists noted that their metabolism was starting to change.
Scientists believe there is a link between high consumption of fructose and obesity and metabolic syndrome. Authorities have raised concerns about the use of high-fructose corn syrup to sweeten drinks and other food products.
Animal studies have found that when obesity occurs due to fructose consumption, there is also a close link with type 2 diabetes.
In 2018, researchers published the results of investigations involving young rats. They, too experienced metabolic changes, oxidative stress, and inflammation after consuming fructose syrup.
The researchers note that increased fructose intake may be an important predictor of metabolic risk in young people.
They call for changes in the diets of young people to prevent these problems.
Foods that contain high-fructose corn syrup include:
To reduce your intake of corn syrup and other additives:
Some foods contain other sweeteners, but these can also have adverse effects.
Some medications can also lead to weight gain.
Results of a review and meta-analysis published in The Journal of Clinical Endocrinology and Metabolism in 2015 found that some medicines caused people to gain weight over a period of months.
However, some medications may lead to weight loss. Anyone who is starting a new medication and is concerned about their weight should ask their doctor whether the drug is likely to have any effect on weight.
The longer a person is overweight, the harder it may be for them to lose weight.
Findings of a mouse study, published in the journal Nature Communications in 2015, suggested that the more fat a person carries, the less likely the body is to burn fat, because of a protein, or gene, known as sLR11.
It seems that the more fat a person has, the more sLR11 their body will produce. The protein blocks the bodys ability to burn fat, making it harder to shed the extra weight.
A faulty gene called the fat-mass and obesity-associated gene (FTO) is responsible for some cases of obesity.
A study published in 2013 points to a link between this gene and:
The hormone ghrelin plays a crucial role in eating behavior. Ghrelin also affects the release of growth hormones and how the body accumulates fat, among other functions.
The activity of the FTO gene might impact a persons chances of having obesity because it affects the amounts of ghrelin a person has.
In a study involving 250 people with eating disorders, published in Plos One in 2017, researchers suggested that aspects of FTO might also play a role in conditions, such as binge eating and emotional eating.
Many factors play a role in the development of obesity. Genetic traits can increase the risk in some people.
A healthful diet that contains plenty of fresh food, together with regular exercise, will reduce the risk of obesity in most people.
However, those that have a genetic predisposition may find it harder to maintain a healthy weight.
Go here to read the rest:
Obesity: What is it and what causes it?
- Detox Products Market Obesity and Alcohol Addiction to Drive Growth in the Market - TMR Research Blog - March 27th, 2020
- Leptin Levels are Associated with Subclinical Cardiac Dysfunction in O | DMSO - Dove Medical Press - March 27th, 2020
- Wisconsin organization seeks to combat increasing obesity rate - The Badger Herald - March 27th, 2020
- Obesity and stigma: A woman's journey to a healthy lifestyle - The New Times - March 26th, 2020
- COVID-19 Warning: Being Overweight Or Obese Ups Your Risk Of Dying From Coronavirus - International Business Times - March 26th, 2020
- Kallyope Gains $112M to Move Gut-Brain Axis Programs to the Clinic - Xconomy - March 26th, 2020
- America's Obesity Problem, By the Numbers - Oddee - March 26th, 2020
- OBESITY MANAGEMENT MARKET TRENDS, STRONG APPLICATION SCOPE, KEY PLAYERS, GROWTH OVERVIEW AND FORECAST BY 2027 - Packaging News 24 - March 26th, 2020
- Coronavirus and obesity: industry urged to act post-crisis - FoodNavigator.com - March 25th, 2020
- Microbial signatures identified in the liver, adipose tissue and blood of people with obesity and diabetes - Gut Microbiota for Health - March 25th, 2020
- Obesity Rates Increasing in India - Star of Mysore - March 25th, 2020
- Understanding and Solving the Problem of Childhood Obesity - Chiang Rai Times - March 25th, 2020
- Science Proved Drinking Coffee Helps Improve Brain Functioning and Slow Aging. Now Research Shows Coffee Can Also Help You Lose Weight and Body Fat -... - March 25th, 2020
- Disease Connection Answers May Exist within this Arizona Tribe - Michigan Medicine - March 25th, 2020
- Letter: Lets use this as an opportunity to fight obesity - Deseret News - March 25th, 2020
- Higher daily step count linked with lower all-cause mortality - National Institutes of Health - March 25th, 2020
- Your letters to the editor: Treat golf fairly like other activities - Madison.com - March 25th, 2020
- Neuropeptide Y knockdown in the dorsomedial hypothalamus improved basal and obesity-induced decrease in bone mass density. - Physician's Weekly - March 25th, 2020
- Excess Sugar Intake Increases Risk Of Death Irrespective Of Your Weight: Study - NDTV Food - March 25th, 2020
- Dr. HE Obesity Clinic: Weight loss clinic in Turkey - Treatment Abroad - March 25th, 2020
- Overcoming the influences of childhood obesity | Agriculture - Victoria Advocate - March 22nd, 2020
- Walking more linked with lower blood pressure - Medical News Today - March 22nd, 2020
- Heres Why You Should Be Drinking Plenty Of Water During The Coronavirus Lockdown - Forbes - March 22nd, 2020
- Obese Kids More Exposed to Anxiety And Depression - Read The Report - India.com - March 22nd, 2020
- Overweight and obesity among the boys of primary public schools of Baish City in Jazan Province, Saudi Arabia: A cross-sectional study. - Physician's... - March 21st, 2020
- New research links obesity in childhood to a higher risk of anxiety, depression, and early death - msnNOW - March 21st, 2020
- Technology Is Making Our Youth Stressed, Lonely, Narcissistic And Digitally Obese - Forbes - March 21st, 2020
- Excess sugar may kill you early whether you're obese or not - India New England - March 21st, 2020
- Spine Implant Industry Assessment 2020-2024 - Spike in Obese Population, Growing Number of Spinal Cord Injuries - Yahoo Finance - March 21st, 2020
- HTN-Related Mortality Particularly Dire in the Rural South - MedPage Today - March 21st, 2020
- Indian Food And Beverage Companies Showing Nutrition Commitment - Outlook India - March 21st, 2020
- Consumption of added sugar may lead to early death, but not because it causes obesity - Study - Times Now - March 21st, 2020
- With Dog Obesity Becoming More Prevalent Is A Whole Food Diet The Answer? - Forbes - March 19th, 2020
- Theres Still Only One Effective Treatment For Obesity, And Its Life-Saving - Forbes - March 19th, 2020
- What is the mechanism behind high blood pressure in obesity? - Medical News Today - March 19th, 2020
- Plans to open takeaway pizza shop in Whiston rejected over childhood obesity concerns - St Helens Reporter - March 19th, 2020
- Solving obesity: Could manipulating microbes offer an alternative to weight loss surgery? - ASU Now - March 19th, 2020
- New in bariatric surgery: Saint Anne's Hospital offers region's first robotic-assisted surgery option - Fall River Herald News - March 19th, 2020
- 16.03.2020 Exposure to ozone increases risk of obesity and diabetes - AirQualityNews - March 19th, 2020
- Coronavirus: Severely obese warned they are among people most 'at-risk' from infection - Mirror Online - March 19th, 2020
- TikTok reportedly buried posts from 'ugly, poor, obese and disabled users' - New York Post - March 19th, 2020
- From Starvation to Obesity: Charting the History of Nutrition in America - The Great Courses Daily News - March 19th, 2020
- The takeaway that wants to be healthy by stealth - The Guardian - March 19th, 2020
- The Exercise Training Modulatory Effects on the Obesity-Induced Immuno | DMSO - Dove Medical Press - March 19th, 2020
- Teen health is focus of new weight loss center at Tower Health - Reading Eagle - March 19th, 2020
- Discovered: Why obesity causes high blood pressure -- and potential ways to fix it - Newswise - March 12th, 2020
- Jeremy Clarkson Called Out For His Controversial Comments On Obesity In Column - Grand Tour Nation - March 12th, 2020
- Determinants of overweight/obesity among reproductive age group women in Ethiopia: multilevel analysis of Ethiopian demographic and health survey. -... - March 12th, 2020
- Researchers call for food education curriculum to combat childhood obesity - EducationHQ - March 12th, 2020
- Wonder Women: Rise of the Obesity Warriors - ETHealthworld.com - March 12th, 2020
- What Will Be the Most Costly Medical Conditions In 10 Years? - Managed Healthcare Executive - March 12th, 2020
- This Dietitian Wants to Burn Diet Culture to the Ground - Outside - March 12th, 2020
- Obesity: Reverse This Complex Disease By Having 2 Glasses Orange Juice Everyday - International Business Times - March 12th, 2020
- New app created to tackle child obesity - Derry Now - March 12th, 2020
- Pounds gained in mid-life could later weigh heavily on lungs - Reuters - March 12th, 2020
- Breathing dirty air could boost the risk of obesity, study - Tech Explorist - March 12th, 2020
- Can-Fite Says Preclinical Study Shows That Small Amounts Of CBD Can Help With Obesity - Benzinga - March 12th, 2020
- Loni Love Speaks Out After Backlash Over Comments On Black Womens Eating Habits - News One - March 12th, 2020
- Obesity rates on the rise in Eau Claire, statewide - WQOW TV News 18 - March 11th, 2020
- UVA Discovers Why Obesity Causes High Blood Pressure and Potential Ways to Stop It - University of Virginia - March 11th, 2020
- Free school dinners led to fall in childhood obesity rates - The Guardian - March 11th, 2020
- Miriams Big Fat Adventure review Margolyes chews the fat on obesity - The Guardian - March 11th, 2020
- Starting early is the key to easing the trajectory of childhood obesity, new study finds - The Sector - March 11th, 2020
- 10 Shameful Myths About Fat Women & Obesity You've Probably Always Believed Were True - YourTango - March 11th, 2020
- ANOTHER OPINION: Obesity rate remains long-term health concern - Goshen News - March 11th, 2020
- 'Helping no one': The role we all play in the obesity epidemic - Sydney Morning Herald - March 11th, 2020
- The Unequal Effect of Income on Risk of Overweight/Obesity of Whites and Blacks with Knee Osteoarthritis: the Osteoarthritis Initiative - DocWire News - March 11th, 2020
- Effects Of Obesity Mirrors That Of Aging - Anti Aging News - March 11th, 2020
- Donald Trump Shockingly At Risk For Coronavirus, Called Morbidly Obese Amid Health Fears - International Business Times - March 11th, 2020
- How Mason Jones Overcame Obesity To Nab SEC Co-Player of the Year Honors - Best of Arkansas Sports - March 11th, 2020
- How behavioral health is linked to obesity - WQOW TV News 18 - March 6th, 2020
- World Obesity Day - World Health Organization - March 6th, 2020
- Denver Among U.S. Cities With Lowest Obesity Rates, Study Finds - CBS Denver - March 6th, 2020
- Ending the obesity shame game - American Medical Association - March 6th, 2020
- CrossFit in China? Documentary explores growing trend all over Asia - South China Morning Post - March 6th, 2020
- article image Most overweight and obese cities in the US unveiled - Digital Journal - March 6th, 2020
- CDC: With Obesity Rising, Nearly Half of US Adults Now Obese - EthicsDaily.com - March 6th, 2020
- Opinion: Obesity should be viewed as a disease - Canada.com - March 6th, 2020
- LGBTQ Obesity: We Eat, Therefore We Die - Shepherd Express - March 6th, 2020
- Obesity rates to be tackled by council - Kent Online - March 6th, 2020