ADHD: Short for attention deficit hyperactivity disorder. This condition is characterized by an ongoing pattern of being impulsive (acting without thinking, for instance), inattentive (have trouble staying on task) or hyperactive (fidgeting excessively or seeming overly restless and talkative). Someone can have any or all of these symptoms — and often at a level that tends to get in the way of their functioning effectively.
adolescent: Someone in that transitional stage of physical and psychological development that begins at the onset of puberty, typically between the ages of 11 and 13, and ends with adulthood.
appetite: A desire to eat or drink, often because of hunger.
attention: The phenomenon of focusing mental resources on a specific object or event.
bioengineer: Someone who applies engineering to solve problems in biology or in systems that will use living organisms.
cell: (in biology) The smallest structural and functional unit of an organism. Typically too small to see with the unaided eye, it consists of a watery fluid surrounded by a membrane or wall. Depending on their size, animals are made of anywhere from thousands to trillions of cells.
chemical: A substance formed from two or more atoms that unite (bond) in a fixed proportion and structure. For example, water is a chemical made when two hydrogen atoms bond to one oxygen atom. Its chemical formula is H2O. Chemical also can be an adjective to describe properties of materials that are the result of various reactions between different compounds.
diabetes: A disease where the body either makes too little of the hormone insulin (known as type 1 disease) or ignores the presence of too much insulin when it is present (known as type 2 diabetes).
disorder: (in medicine) A condition where the body does not work appropriately, leading to what might be viewed as an illness. This term can sometimes be used interchangeably with disease.
dissolve: To turn a solid into a liquid…
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