Obesity

Study of sleep apps finds room for improvement

An analysis of 35 popular phone-based sleep apps finds that while most help users set sleep-related goals and track and manage their sleep, few make use of other methods known to help the chronically sleep-deprived.

Apr 12, 2017
popularity1 comments 0

Avocados may help combat the metabolic syndrome

A new review investigates the effects of avocados on different components of metabolic syndrome, which is a clustering of risk factors including high blood sugar, cholesterol, blood pressure, and body mass index. These risk ...

Apr 10, 2017
popularity4 comments 0

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 and/or increased health problems. Body mass index (BMI), a measurement which compares weight and height, defines people as overweight (pre-obese) if their BMI is between 25 and 30 kg/m2, and obese when it is greater than 30 kg/m2.

Obesity increases the likelihood of various diseases, particularly heart disease, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis. Obesity is most commonly caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrine disorders, medications or psychiatric illness. Evidence to support the view that some obese people eat little yet gain weight due to a slow metabolism is limited; on average obese people have a greater energy expenditure than their thin counterparts due to the energy required to maintain an increased body mass.

Dieting and physical exercise are the mainstays of treatment for obesity. Moreover, it is important to improve diet quality by reducing the consumption of energy-dense foods such as those high in fat and sugars, and by increasing the intake of dietary fiber. To supplement this, or in case of failure, 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 much of the modern world (particularly in the Western world), though it was widely perceived as a symbol of wealth and fertility at other times in history, and still is in some parts of the world.

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

Latest Spotlight News

Success in the 3-D bioprinting of cartilage

A team of researchers at Sahlgrenska Academy has managed to generate cartilage tissue by printing stem cells using a 3-D-bioprinter. The fact that the stem cells survived being printed in this manner is a success in itself. ...

Childhood sleep apnoea is common but hard to diagnose

The cessation of breathing during sleep caused by enlarged tonsils is common in preschool-age children and can cause serious complications, but the methods normally used to diagnose the condition are subjective and unreliable. ...