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Body weight

The total human body mass measured in kilograms.

Definition

The measure of the total body mass of the human being, generally expressed in kilograms. It is the simplest indicator of overall bodily composition.

How it works

Body weight represents the sum of all body components: muscles, bones, fats, water, and organs. It naturally varies with age, sex, genetic factors, and lifestyle of each individual. Weight alone does not reflect bodily composition, as two individuals with the same weight can have significantly different proportions of muscle and fat. This is why healthcare professionals complement this measure with other indicators such as the body mass index (BMI) or waist circumference measurement.

Role

Body weight is a reference indicator to evaluate nutritional status and general health of a person.

Examples

  • A 70 kg adult
  • A 65 kg woman
  • A 35 kg child

Recommendations

Maintain regular weighing (weekly or monthly) under the same conditions to track variations. Do not obsess over daily fluctuations that may be caused by water retention or digestive content. Associate weight measurement with other indicators for a comprehensive view of health.

Key takeaway

Body weight is a useful measure but must be interpreted in context with other health indicators.

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