For people, animals and plants, lifespan refers to the length of life, according to the Oxford Dictionaries. For equipment, machines, appliances and other products, lifespan describes the length of time for which the item is functional.
The phrase "expected lifespan" describes the length of time that the average human lives. As health and science evolves, human lifespans get longer, according to Scientific American. The expected lifespan, or useful life of a product, is one of the factors evaluated by potential buyers. A durable product that lasts longer offers more value than a product that is expensive and has a relatively short lifespan.Learn More
Biology is important because it allows people to understand the diversity of life forms and their conservation and exploitation. Through various biological disciplines, people obtain knowledge about life and living organisms, including the origin, growth, evolution, structure, distribution and function of these organisms.Full Answer >
Most people can stop the problem of drooling in their sleep by changing their sleep position. Dr. Celite Kushida of the Stanford University Center for Human Sleep Research advises people with sleep-related drooling issues to try sleeping on their backs. He notes that sleep position is most often the culprit. He notes the worst position for drooling is on the stomach with the head on the corner of the pillow.Full Answer >
It typically needs to be at or below 45 degrees Fahrenheit for people to see their breath. When individuals exhale, they release moisture into the air. That moisture is then cooled down by the air, which creates a type of fog.Full Answer >
The household mold Aspergillus causes fungal infections in the lungs, allergic reactions and respiratory problems in some people. Some people have no reaction to the mold at all. Reactions depend on the person's health and the level of mold spores present at the time of exposure.Full Answer >