Anesthetic: An agent that causes insensitivity to pain and is used for surgeries and other medical procedures.
Central nervous system: The brain and spinal cord.
Dementia: A condition of deteriorated mental function.
Dopamine: A brain chemical, classified as a neurotransmitter, found in regions of the brain that regulate movement, emotion, motivation, and pleasure.
Naphthalene: Volatile, active ingredient in mothballs.
Toxic: Causing temporary or permanent effects that are detrimental to the functioning of a body organ or group of organs.
Withdrawal: Symptoms that occur after chronic use of a drug is reduced abruptly or stopped.
This series of reports simplifies the science of research findings for the educated lay public, legislators, educational groups, and practitioners. The series reports on research findings of national interest.