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Psychoactive drug
A psychoactive drug or psychotropic substance is a chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, mood, consciousness and behavior.
Note: The above text is excerpted from the Wikipedia article "Psychoactive drug", which has been released under the GNU Free Documentation License.
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Mind & Brain News
December 22, 2024
Dec. 9, 2024 — The short-term boost our brains get after we do exercise persists throughout the following day, suggests a new ...
Dec. 3, 2024 — Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes allowed human ancestors to meet the very high ...
Dec. 4, 2024 — Exposure to car exhaust from leaded gas during childhood altered the balance of mental health in the U.S. population, making generations of Americans more depressed, anxious and inattentive or hyperactive, according to researchers. They estimate ...
Dec. 2, 2024 — Researchers have linked a specific type of body fat to the abnormal proteins in the brain that are hallmarks of Alzheimer's disease up to 20 years before the earliest symptoms of dementia appear, according to a new study. The researchers emphasized ...
Latest Headlines
updated 12:56 pm ET
Dec. 20, 2024 — Using an AI tool, researchers have analyzed brain images from 70-year-olds and estimated their brains' biological age. They found that factors detrimental to vascular health, such as inflammation and ...
Dec. 20, 2024 — Researchers trained a large language model to read medical charts, looking for signs that kids with ADHD received the right follow-up care when using new ...
Dec. 20, 2024 — When you are feeling hungry, the brain takes the necessary steps toward consuming a meal. Many of these steps are not well known, but a new study reveals brain circuits and chemical messengers that ...
Dec. 19, 2024 — Mutational signatures etched into the cells' genome by an anti-cancer drug called temozolomide (TMZ) uncover an Achilles' heel for TMZ chemotherapy resistance, according to new ...
Dec. 19, 2024 — A new study reveals significant improvements in the health of older adults when compared to previous ...
Dec. 19, 2024 — People who suffer from continued symptoms of concussion should seek a referral to physical therapy as soon as possible, new research ...
Dec. 19, 2024 — Impatience, studies of more than 1,200 people found, is the emotion people feel when they face a delay that seems unfair, unreasonable, or inappropriate -- like a traffic jam outside of rush hour, or ...
Dec. 19, 2024 — Artificial intelligence that is as intelligent as humans may become possible thanks to psychological learning models, combined with certain types of ...
Dec. 19, 2024 — Antibodies can improve the rehabilitation of people with acute spinal cord injury. Researchers have investigated this with promising results. For the ...
Dec. 19, 2024 — A study of more than 2,400 people with atrial fibrillation, who had an average age of 73, found that drinking more than five cups of caffeinated ...