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Molecular techniques are man's new best friend in pet obesity research

According to the World Health Organization, more than two-thirds of Americans are overweight or obese. And it's not just humans who are packing on the pounds. Our furry companions are plagued by an obesity ...

Biology - Other

Apr 10, 2013

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It's a dog's life when man's best friend becomes his fattest

A study published this morning in Nature offers further insight into how dogs became domesticated. The comparative analysis of human, canine and wolf genomes suggests that humans and dogs have evolved in ...

Biology - Plants & Animals

Jan 24, 2013

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Is there a Neanderthal in the house?

Bunions bothering you? How about lower back pain, or impacted wisdom teeth?

Biology - Evolution

Feb 16, 2013

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Obesity

Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy. Body mass index (BMI), which compares weight and height, is used to define a person as overweight (pre-obese) when their BMI is between 25 kg/m2 and 30 kg/m2 and obese when it is greater than 30 kg/m2.

Obesity is associated with many diseases, particularly heart disease, type 2 diabetes, breathing difficulties during sleep, certain types of cancer, and osteoarthritis. Obesity is most commonly caused by a combination of excessive dietary calories, lack of physical activity, and genetic susceptibility, though a limited number of cases are due solely to genetics, medical reasons or psychiatric illness.

The primary treatment for obesity is dieting and physical exercise. If this fails, anti-obesity drugs may be taken to reduce appetite or inhibit fat absorption. In severe cases, surgery is performed or an intragastric balloon is placed to reduce stomach volume and or bowel length, leading to earlier satiation and reduced ability to absorb nutrients from food.

Obesity is a leading preventable cause of death worldwide, with increasing prevalence in adults and children, and authorities view it as one of the most serious public health problems of the 21st century. Obesity is stigmatized in the modern Western world, though it has been perceived as a symbol of wealth and fertility at other times in history, and still is in many parts of Africa.

This text uses material from Wikipedia, licensed under CC BY-SA

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