Psychoactive drugs are substances that affect the brain. The types range from heroin to caffeine. These substances can affect awareness, thoughts, mood, and behavior. Depending on the situation, the ...

Addiction is an umbrella term that reflects qualities of substance use disorder, characterized by an inability to stop using a substance despite harmful consequences. However, addiction is not a ...

Substance use disorder can lead to short- and long-term negative health effects. These can be physical and mental, ranging from moderate to severe. They will depend on the substance a person had been ...