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Drug addiction

Drug addiction, or substance dependence is the compulsive use of psychoactive drugs, to the point where the user has no effective choice but to continue use.

Note: The above text is excerpted from the Wikipedia article "Drug addiction", which has been released under the GNU Free Documentation License.

For more information, see the following related content on ScienceDaily:

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Predisposition to Addiction May Be Genetic, Study Finds

June 10, 2021 — People who have a high sensation-seeking trait in the brain could be more susceptible to drug addition, according to a new ...

Addiction Relapse Driven by Drug-Seeking Habit, Not Just Drug

Dec. 17, 2021 — Why are some individuals able to use recreational drugs in a controlled way, whereas others switch to the compulsive, relapsing drug-seeking and -taking habits that characterize substance use ...

Low Addiction Risk With Medical Use of Ketamine: Animal Study

Aug. 4, 2022 — Commonly used in medicine as an anaesthetic, ketamine is also increasingly prescribed to relieve depressive symptoms. This very fast-acting psychotropic drug is particularly indicated for the ...

Nearly Third of US Young People Prescribed Psychoactive Drugs Admit Misusing Them

Feb. 2, 2021 — Nearly a third of US teens and young adults prescribed a psychoactive drug misuse that drug, with the likelihood of misuse rising with age, suggests an analysis of national survey ...

How Serotonin Curbs Cocaine Addiction

Sep. 9, 2021 — By identifying the role of serotonin during cocaine use, scientists explain why only one in five persons becomes addicted to this ...

High-Strength Cannabis Linked to Addiction and Mental Health Problems

July 25, 2022 — Largest ever study into the health effects of different types of cannabis highlights concerns about stronger forms of the ...

Removing Brain Cells Linked to Wakefulness and Addiction May Lessen Symptoms of Opioid Withdrawal

Jan. 12, 2022 — A study in mice shows that removing chemical messengers in the brain that are involved in both wakefulness and addiction may make withdrawal from opioids easier and help prevent ...

Frustration Is an Additional Factor of Addiction

Mar. 1, 2021 — Researchers have shown that frustration is additional factor that can lead to addiction ...

Highly Specific Synaptic Plasticity in Addiction

Jan. 26, 2021 — Addiction, or substance use disorder (SUD), is a complex neurological condition that includes drug-seeking behavior among other cognitive, emotional and behavioral features. Synaptic plasticity, or ...

Two Novel Biobanks Offer Investigatory Targets for Cocaine and Oxycodone Addiction

Apr. 26, 2021 — Researchers have created to novel biobanks of diverse tissues from animals to further explore the biological bases and consequences of addiction to cocaine and ...

Mind & Brain News

November 29, 2023

Brittle Stars Can Learn Just Fine -- Even Without a Brain

Nov. 29, 2023 — We humans are fixated on big brains as a proxy for smarts. But headless animals called brittle stars have no brains at all and still manage to learn through experience, new research reveals. These shy marine creatures have no brain to speak of -- ...

'Woman the Hunter': Studies Aim to Correct History

Nov. 20, 2023 — New research combined both physiological and archaeological evidence to argue that not only did prehistoric women engage in the practice of hunting, but their female anatomy and biology would have made them intrinsically better suited for ...

US Men Die 6 Years Before Women, as Life Expectancy Gap Widens

Nov. 14, 2023 — We've known for more than a century that women outlive men. But new research shows that, at least in the United States, the gap has been widening for more than a ...

AI Faces Look More Real Than Actual Human Face

Nov. 13, 2023 — White faces generated by artificial intelligence (AI) now appear more real than human faces, according to new research. In the study, more people thought AI-generated white faces were human than the faces of real people. The same wasn't true for ...

Latest Headlines

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Researchers Identify Cell Signaling Pathway Controlling Melanoma Cell Metastasis to the Brain

Nov. 29, 2023 — Researchers have been working to better understand what drives melanoma brain metastasis. They now report on the identification of a cell signaling ...

Brain Scans of Former NFL Athletes Show a Repair Protein in Place Long After Initial Injury

Nov. 29, 2023 — In a new study using brain scans of former NFL athletes, researchers say they found high levels of a repair protein present long after a traumatic ...

Mindfulness-Based Intervention Shows Promise for PTSD in Cardiac Arrest Survivors

Nov. 29, 2023 — A novel pilot study incorporating mindfulness into exposure therapy shows promise for reducing symptoms of post-traumatic stress in cardiac arrest ...

Drugs Already Licensed Could Be Trialled to Potentially Treat Secondary Brain Cancer

Nov. 29, 2023 — The largest review of papers for brain cancer that has spread from the lungs has found abnormalities in the brain cancer and for which licensed drugs ...

Soccer Heading Linked to Measurable Decline in Brain Function

Nov. 29, 2023 — New research links soccer heading -- where players hit the ball with their head -- to a measurable decline in the microstructure and function of the brain over a two-year ...

Eye-Safe Laser Technology to Diagnose Traumatic Brain Injury

Nov. 29, 2023 — Researchers have designed and developed a novel diagnostic device to detect traumatic brain injury (TBI) by shining a safe laser into the ...

New Study Reveals the Critical Role of Microglia in Human Brain Development

Nov. 14, 2023 — An international team of scientists has uncovered the vital role of microglia, the immune cells in the brain that acts as its dedicated defense team, in early human brain development. By ...

Conscientious Personalities Less at Risk of Dementia Diagnosis

Nov. 29, 2023 — People with personality traits such as conscientiousness, extraversion and positive affect are less likely to be diagnosed with dementia than those with neuroticism and negative affect, according to ...

Tracing the Evolution of the 'Little Brain'

Nov. 29, 2023 — The evolution of higher cognitive functions in humans has so far mostly been linked to the expansion of the neocortex. Researchers are increasingly realizing, however, that the 'little brain' or ...

Researchers Find Connections Between Neuroinflammation and Alzheimer's Disease

Nov. 29, 2023 — Investigators revealed how genetic changes in certain types of brain cells may contribute to the inflammatory response seen in Alzheimer's ...