Overweight

excess body weightexcess weightheavy-setbig-bonedchubbyfuller figure appearanceheavyheavysethis weightover-
Being overweight or fat is having more body fat than is optimally healthy.wikipedia
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Obesity

obesemorbidly obeseoverweight
, excess weight reached epidemic proportions globally, with more than 1 billion adults being either overweight or obese.
People are generally considered obese when their body mass index (BMI), a measurement obtained by dividing a person's weight by the square of the person's height, is over 30 kg/m2; the range 25 kg/m2 is defined as overweight.

Body mass index

BMIbody mass index (BMI)body-mass index
The degree to which a person is overweight is generally described by the body mass index (BMI).
For such individuals, the value recommendations are as follows: a BMI from 18.5 up to 25 kg/m 2 may indicate optimal weight, a BMI lower than 18.5 suggests the person is underweight, a number from 25 up to 30 may indicate the person is overweight, and a number from 30 upwards suggests the person is obese.

Body shape

fat distributiondistributionbroadening of the shoulders
But the accumulation of too much storage fat can impair movement, flexibility, and alter the appearance of the body.
Being overweight or underweight causes change in the human body's shape as well as posture and walking style.

Azoospermia

azoospermicaspermatogenesisobstructive azoospermia
Being overweight also increases the risk of oligospermia and azoospermia in men.
For example, a review in 2013 came to the result that oligospermia and azoospermia are significantly associated with being overweight (odds ratio 1.1), obese (odds ratio 1.3) and morbidly obese (odds ratio 2.0), but the cause of this is unknown.

Oligospermia

oligozoospermialow sperm countdiminished
Being overweight also increases the risk of oligospermia and azoospermia in men.
A review in 2013 came to the result that oligospermia and azoospermia are significantly associated with being overweight (odds ratio 1.1), obese (odds ratio 1.3) and morbidly obese (odds ratio 2.0), but the cause of this is unknown.

Diabetes mellitus type 2

type 2 diabetestype II diabetestype 2 diabetes mellitus
People who have insulin dependent diabetes and chronically overdose insulin may gain weight, while people who already are overweight may develop insulin tolerance, and in the long run develop type II diabetes.
Lifestyle factors are important to the development of type 2 diabetes, including obesity and being overweight (defined by a body mass index of greater than 25), lack of physical activity, poor diet, stress, and urbanization.

Malnutrition

malnourishednutritional deficienciesmalnourishment
Poor nutrition
Overnutrition can result in obesity and being overweight.

Cancer

cancersmalignanciescancerous
Being overweight has been identified as a cause of cancer, and is projected to overtake smoking as the primary cause of cancer in developed countries as cases of smoking-related cancer dwindle.
Greater than 30% of cancer deaths could be prevented by avoiding risk factors including: tobacco, excess weight/obesity, poor diet, physical inactivity, alcohol, sexually transmitted infections and air pollution.

Fat acceptance movement

fat acceptancesize acceptanceacceptance
Fat acceptance movement
Fat activists argue that the health issues of obesity and being overweight have been exaggerated or misrepresented, and that the health issues are used as a cover for cultural and aesthetic prejudices against fat.

Adipose tissue

adiposebody fatfat
Being overweight or fat is having more body fat than is optimally healthy.

Dietary energy supply

dietary energyfood supplies
Being overweight is especially common where food supplies are plentiful and lifestyles are sedentary.

Sedentary lifestyle

sedentarycouch potatophysical inactivity
Being overweight is especially common where food supplies are plentiful and lifestyles are sedentary.

Fat

greasetotal fatdietary fat
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Hormone

hormoneshormonalprohormone
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Reproductive system

reproductive tractreproductivegenital system
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Immune system

immuneimmune responseimmune responses
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Thermal insulation

insulationinsulatedinsulating
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Shock absorber

shock absorbersdampersdamper
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

Lipid

lipidsglycerolipidfat
A healthy body requires a minimum amount of fat for proper functioning of the hormonal, reproductive, and immune systems, as thermal insulation, as shock absorption for sensitive areas, and as energy for future use.

National Institutes of Health

NIHNational Institute of HealthNational Institutes of Health (NIH)
The current definition proposed by the US National Institutes of Health (NIH) and the World Health Organization (WHO) designates whites, Hispanics and blacks with a BMI of 25 or more as overweight.

World Health Organization

WHOWorld Health OrganisationWorld Health Organization (WHO)
The current definition proposed by the US National Institutes of Health (NIH) and the World Health Organization (WHO) designates whites, Hispanics and blacks with a BMI of 25 or more as overweight.

Genetics

geneticgeneticistgenetically
BMI, however, does not account extremes of muscle mass, some rare genetic factors, the very young, and a few other individual variations.

Underweight

thinnessskinnybeing underweight
Reports are surfacing, however, that being mildly overweight to slightly obese – BMI being between 24 and 31.9 – may be actually beneficial and that people with a BMI between 24 and 31.9 could actually live longer than normal weight or underweight persons.

Pearson correlation coefficient

correlation coefficientcorrelationPearson correlation
BMI provides a significantly more accurate representation of body fat content than simply measuring a person's weight. It is only moderately correlated with both body fat percentage and body fat mass (R 2 of 0.68). It does not take into account certain factors such as pregnancy or bodybuilding; however, the BMI is an accurate reflection of fat percentage in the majority of the adult population.