MeSH tree: D02.455.426.559.389.657.166
Teenage risk-taking, such as experimentation with alcohol, cannabis, nicotine and other substances, may reflect a compensatory response to lower baseline dopamine, the brain chemical for reward activity, a new University ...
Jun 11, 2026
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You sit down to start a task you care about. Nothing happens. You open your phone instead. Minutes turn into hours. You feel restless, flat, or oddly exhausted, even though you haven't done much at all.
Jun 4, 2026
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Becoming a mother changes the brain not just temporarily, but for life. Pregnancy and the postpartum period trigger lasting changes in the maternal brain through the brain chemical dopamine, producing long-term benefits to ...
Jun 4, 2026
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Scientists from Tokyo Metropolitan University have revealed key parts of the biochemical pathways connecting stress to sexual dysfunction. By studying Drosophila fruit flies, they showed that the neurotransmitter dopamine ...
Jun 1, 2026
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A new study by emergency medicine researchers at UC Davis Health set out to assess the effects of naloxone administration by first responders treating patients with out-of-hospital cardiac arrest (OA-OHCA). The study, published ...
May 29, 2026
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Making children laugh can build deep emotional connections and soothe their nervous systems, making them more resilient and open to new ideas, says a leading child development expert. Dr. Jacqueline Harding, director of Tomorrow's ...
May 24, 2026
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Scientists long assumed that learning speed depends primarily on our experience—how many times we try and succeed—not the size of the reward. We become better at poker because we keep playing and winning, regardless of the ...
May 21, 2026
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Most people have experienced the feeling: switching from one task to another, only to find the brain momentarily stuck in the old mode of thinking. Sometimes, even after realizing a strategy no longer works, the mind keeps ...
May 21, 2026
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You've just finished a workout, lungs burning, heart pumping, and you feel energized and ready to take on the day. That's your brain rewarding you with a hit of dopamine—the feel-good hormone that exercise is known to trigger.
May 13, 2026
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Many people finish the workday not just tired but wired. Their mind keeps racing, their body feels tense, and even in moments that should be restful they feel a lingering sense of urgency. Conversations replay in their mind, ...
May 5, 2026
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