Definition Human energy refers to the physical and mental energy that a person uses to perform activities, which can range from basic survival tasks to complex intellectual endeavors. Expanded Explanation Human energy is essential for all aspects of life, including physical activity, mental processing, and emotional responses. It is generated through various bodily processes, primarily […]
Definition Fatigue is a state of feeling tired, weary, or lacking energy, often as a result of physical or mental exertion. Expanded Explanation Fatigue is more than just feeling drowsy or sleepy. It’s a pervasive sense of tiredness or exhaustion that can affect productivity, mood, and overall health. It may be acute, lasting for a
Definition Metabolism refers to the set of life-sustaining chemical reactions within the cells of organisms. It involves processes such as the breakdown of nutrients to produce energy and the synthesis of all compounds needed by the cells. Expanded Explanation Metabolism comprises two main types of activities: catabolism, the breaking down of compounds to generate energy;
Definition A thermometer is a device used to measure temperature, indicating the degree of hotness or coldness of an object or environment. Expanded Explanation Thermometers play a crucial role in various fields such as science, medicine, industry, and meteorology. They provide accurate temperature readings, facilitating informed decision-making and actions. Types of Thermometers Thermometers come in
Definition Vitamin A is a group of fat-soluble compounds essential for maintaining healthy skin, vision, immune system function, and overall growth and development. Expanded Explanation Vitamin A is vital in various biological processes, including cell growth, vision, and immune function. Vitamin A has antioxidant properties that protect cells from damage caused by free radicals. Retinol
Definition Carotenoids are natural pigments that give fruits and vegetables red, yellow, and orange colours. Expanded Explanation Carotenoids are a group of over 600 organic compounds found in plants, algae, and photosynthetic bacteria. They play an essential role in photosynthesis and serve as antioxidants, protecting cells from damage caused by free radicals. The human body
Definition Antioxidants neutralize free radicals, protecting the skin and body from oxidative stress. This kind of stress can lead to cell damage inflammation, and accelerate the aging process. Expanded Explanation Antioxidants are vital in maintaining overall skin health and a youthful appearance. Unstable molecules called free radicals can damage cells, leading to premature aging, inflammation,
Definition Free radicals with unpaired electrons can harm the skin and other tissues. They are highly reactive and unstable. To clarify, they damage cells by stealing electrons from healthy molecules. Expanded Explanation Naturally occurring reactive molecules in the body, often a byproduct of metabolism, can lead to skin issues, premature aging, and inflammation. External elements
Definition Retinol, a vitamin A derivative, is frequently used in skin care products to enhance skin texture, reduce wrinkles, and even tone. Expanded Explanation Retinol has become a popular and effective ingredient in many skincare products because it can increase cell turnover and stimulate collagen production. This promotes overall skin health and helps maintain a
Definition Fibroblasts, specialized cells in connective tissue, play a vital role in maintaining skin structure and elasticity by synthesizing and secreting extracellular matrix proteins like collagen and elastin. Expanded Explanation Fibroblasts are vital in skin health, wound healing, and tissue repair. They contribute to forming the skin’s structural framework and produce essential proteins that maintain
