View. comments. The multi-millionaire owner of the company that makes Segway motorised scooters has died in a freak accident while riding one of his vehicles. Jimi Heselden, 62, was found dead in a river after plunging 80 feet over a limestone cliff near his home.
Prevention. For decades, researchers have been trying to figure out what leads some people to develop an addiction (whether to a substance or a behavior) while others never become addicted at all. Addictive substances and behaviors share a common trait: In general, they trigger a neurological response that activates the brainâs reward system; this brings someone who is addicted back for more, again and again.
Definition. Addiction is a persistent, compulsive dependence on a behavior or substance. The term has been partially replaced by the word dependence for substance abuse. Addiction has been extended, however, to include mood-altering behaviors or activities.. A neurobehavioral syndrome with genetic and environmental influences that results in psychological dependence on the use of substances for their psychic effects; addiction is characterized by compulsive use despite harm.