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 ...

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 ...

Whether the substance involved is crack cocaine or alcohol or a behavior such as gambling, the common denominator of all addictions is continued use despite the development of negative ...

At-home drug tests are urine or saliva tests that can identify if illegal or prescriptions drugs are present in your body. These tests are an alternative to going in person to a laboratory or other ...

There are many theories about the causes of addiction, the use and abuse of legal and illegal psychoactive substances. Biology, psychology, and social and cultural elements all play a role in the ...

People with schizophrenia have much higher rates of substance use disorders – including alcohol, tobacco, cannabis, and cocaine – than the general population. One study found 47% of people with ...