Khan Academy
Khan Academy: Risk Factors for Drug Use and Drug Abuse
A description of the factors (biological risks, psychological risks, socio-cultural risks, and environmental risks) that relate to each other in complicated ways that can lead to drug abuse or drug addiction.
Khan Academy
Khan Academy: Tolerance and Withdrawal
An illustrated explanation of the neurons in the brain and the effects of tolerance and withdrawal.
Khan Academy
Khan Academy: Reward Pathway in the Brain
An physiologically and chemically illustrated presentation of pleasurable stimuli and the reward pathways followed in the brain. Also explained are studies of addiction that seem to take over a rational mind.
Khan Academy
Khan Academy: Substance Use Disorders
An overview of substance induced disorders are examined.
Khan Academy
Khan Academy: Drug Dependence and Homeostasis
An explanation of homeostasis and related to drug dependence and drug overdose.
Khan Academy
Khan Academy: Routes of Drug Entry
The routes of drug entry are explored including oral, inhalation, injection, transdermal, and intramuscular.