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Skin whitening. Skin whitening, also known as skin lightening and skin bleaching, is the practice of using chemical substances in an attempt to lighten the skin or provide an even skin color by reducing the melanin concentration in the skin. Several chemicals have been shown to be effective in skin whitening, while some have proven to be toxic ...
Skin temperature. Anatomy of the human skin. Skin temperature is the temperature of the outermost surface of the body. Normal human skin temperature on the trunk of the body varies between 33.5 and 36.9 °C (92.3 and 98.4 °F), though the skin's temperature is lower over protruding parts, like the nose, and higher over muscles and active organs ...
Facials may include the use of a facial mask. A facial is a family of skin care treatments for the face, including steam, exfoliation (physical and chemical), extraction, creams, lotions, facial masks, peels, and massage. They are normally performed in beauty salons, but are also a common spa treatment. They are used for general skin health as ...
Skin care or skincare is a range of practices that support skin integrity, enhance its appearance, and relieve skin conditions. They can include nutrition, avoidance of excessive sun exposure, and appropriate use of emollients. Practices that enhance appearance include the use of cosmetics, botulinum, exfoliation, fillers, laser resurfacing ...
Infants ages 0-3 months require about 14-17 hours of sleep daily. Toddlers ages 1-2 years need approximately 11-14 hours of daily sleep. Children ages 3-5 years should aim for 10-13 hours. Older ...
Thermal comfort is the condition of mind that expresses subjective satisfaction with the thermal environment. [ 1] The human body can be viewed as a heat engine where food is the input energy. The human body will release excess heat into the environment, so the body can continue to operate. The heat transfer is proportional to temperature ...
Radiative cooling. In the study of heat transfer, radiative cooling[ 1][ 2] is the process by which a body loses heat by thermal radiation. As Planck's law describes, every physical body spontaneously and continuously emits electromagnetic radiation .
Antipyretic. An antipyretic ( / ˌæntipaɪˈrɛtɪk /, from anti- 'against' and pyretic 'feverish') is a substance that reduces fever. [ 1] Antipyretics cause the hypothalamus to override a prostaglandin -induced increase in temperature. [citation needed] The body then works to lower the temperature, which results in a reduction in fever.