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Bioelectrical impedance analysis ( BIA) is a method for estimating body composition, in particular body fat and muscle mass, where a weak electric current flows through the body, and the voltage is measured in order to calculate impedance ( resistance and reactance) of the body. Most body water is stored in muscle.
t. e. In biology, homeostasis ( British also homoeostasis; / hɒmioʊˈsteɪsɪs, - miə -/) is the state of steady internal physical and chemical conditions maintained by living systems. [ 1] This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within ...
Normal human body temperature ( normothermia, euthermia) is the typical temperature range found in humans. The normal human body temperature range is typically stated as 36.5–37.5 °C (97.7–99.5 °F). [ 8][ 9] Human body temperature varies. It depends on sex, age, time of day, exertion level, health status (such as illness and menstruation ...
Body composition. In physical fitness, body composition refers to quantifying the different components (or "compartments") of a human body. [ 1] The selection of compartments varies by model but may include fat, bone, water, and muscle. [ 2] Two people of the same gender, height, and body weight may have completely different body types as a ...
Human thermoregulation. As in other mammals, human thermoregulation is an important aspect of homeostasis. In thermoregulation, body heat is generated mostly in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. [ 1] Humans have been able to adapt to a great diversity of climates, including hot ...
The main elements that comprise the human body (including water) can be summarized as CHNOPS . About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
Average daily variation in human body temperature. Many physical processes are related to temperature; some of them are given below: the physical properties of materials including the phase (solid, liquid, gaseous or plasma), density, solubility, vapor pressure, electrical conductivity, hardness, wear resistance, thermal conductivity, corrosion resistance, strength
The faster the wind speed, the faster our body heat is taken away and the colder it feels. For example, in a scenario where the actual temperature is 10 degrees but the "feels like" temperature is ...