Addiction: Central nervous system (CNS) stimulants are addictive, even if they are not abused. Many factors, including the patient's personal history, the type of stimulant that is being taken, the dose of the drug, and duration of use, influence how likely an individual is to become addicted.
The source of all waves - mechanical or electromagnetic - is something that is vibrating. Matthew Donovan.
Originally Answered: What is the main source of energy for all living things? Its Easy....The SUN. It has been radiantly shining down upon the earth for billions of years and is and will be the main source of energy for all living and non-living things on it. All the plants generate their energy from sun. All Herbivores get their energy from plants. All Carnivorous get their energy from eating Herbivores and other Carnivorous .