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Smoking cannabis with tobacco may disrupt the brain’s “bliss molecule”

Scientists found that people who use both cannabis and tobacco show a distinct brain pattern tied to mood and stress regulation. Their scans revealed higher levels of an enzyme that reduces a natural feel-good molecule in the brain. This imbalance may …

Your anxiety may be controlled by hidden immune cells in the brain

Researchers have uncovered surprising evidence that anxiety may be controlled not by neurons but by two dueling groups of immune cells inside the brain. These microglia act like biological pedals—one pushing anxiety forward and the other holding it b…

What brain scans reveal about soccer fans’ passion and rage

Researchers scanning soccer fans’ brains found that wins trigger bursts of reward activity while losses dampen control signals. The results show how loyalty and rivalry can override logic, turning competition into an emotional storm. The same brain c…

Scientists find brain chemical tied to trauma and depression

Researchers identified SGK1 as a key chemical connecting childhood trauma to depression and suicidal behavior. High SGK1 levels were found in the brains of suicide victims and in people with genetic variants linked to early adversity. Drugs that block …

A simple DNA test could reveal the right antidepressant for you

Millions struggle with depression and anxiety, often enduring long waits for effective treatment. Scientists in Sweden, Denmark, and Germany are developing a genetic test to predict which medications will actually work. Using polygenic risk scores, the…

Common antidepressant found to work in just two weeks

Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on specific symptom networks rather than uniformly across al…

Common antidepressant found to work in just two weeks

Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on specific symptom networks rather than uniformly across al…

Common antidepressant found to work in just two weeks

Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on specific symptom networks rather than uniformly across al…

A 500-million-year-old brain "radar" still shapes how you see

New research shows that the superior colliculus, a primitive brain region, can independently interpret visual information. This challenges long-held beliefs that only the cortex handles such complex computations. The discovery highlights how ancient ne…

A 500-million-year-old brain "radar" still shapes how you see

New research shows that the superior colliculus, a primitive brain region, can independently interpret visual information. This challenges long-held beliefs that only the cortex handles such complex computations. The discovery highlights how ancient ne…