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Amygdala
The amygdala is an almond-shaped cluster of neurons located deep within the brain’s temporal lobe and is a key component of the limbic system. It plays a central role in processing emotions, particularly fear, anger, and pleasure, and helps the brain assess threats and trigger appropriate responses. The amygdala is also involved in forming emotional memories, making it crucial for learning from past experiences.
When the brain perceives a potential danger, the amygdala activates rapidly, initiating physiological responses such as increased heart rate and heightened alertness. It interacts closely with other brain regions, including the hippocampus, which helps contextualize emotional experiences, and the prefrontal cortex, which contributes to regulating emotional reactions.
Dysfunction in the amygdala has been linked to various mental health conditions, including anxiety disorders, post-traumatic stress disorder, and depression. Despite its small size, the amygdala plays a powerful role in shaping behavior, emotional learning, and survival-driven instincts.
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Mind & Brain News
January 7, 2026
Jan. 7, 2026 Teens who sleep in on weekends may be giving their mental health a boost. A new study found that young people who made up for lost weekday sleep had a significantly lower risk of depression. While consistent sleep is still best, weekend catch-up ...
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Jan. 5, 2026 A long-running debate over Tamiflu’s safety in children may finally be settled. Researchers found that influenza, not the antiviral medication, was linked to serious neuropsychiatric events like seizures and hallucinations. Even more striking, ...
Jan. 5, 2026 Nearly all women in STEM graduate programs report feeling like impostors, despite strong evidence of success. This mindset leads many to dismiss their achievements as luck and fear being “found out.” Research links impostorism to worse mental ...
Jan. 5, 2026 New research shows gut bacteria can directly influence how the brain develops and functions. When scientists transferred microbes from different primates into mice, the animals’ brains began to resemble those of the original host species. Microbes ...
Jan. 4, 2026 Researchers compared a traditional Chinese medicine, Yueju Pill, with a standard antidepressant and found both reduced depression symptoms. However, only Yueju Pill increased a brain-supporting protein associated with mood improvement. Brain imaging ...
Jan. 4, 2026 New research shows that AI doesn’t need endless training data to start acting more like a human brain. When researchers redesigned AI systems to better resemble biological brains, some models produced brain-like activity without any training at ...
Jan. 3, 2026 Your daily rhythm may matter more for brain health than previously thought. Older adults with weaker, more disrupted activity patterns were far more likely to develop dementia than those with steady routines. A later daily energy peak was also ...
Jan. 3, 2026 A massive global genetics study is reshaping how we understand mental illness—and why diagnoses so often pile up. By analyzing genetic data from more than six million people, researchers uncovered deep genetic connections across 14 psychiatric ...
Jan. 3, 2026 Researchers discovered that clogged brain “drains” show up early in people at risk of Alzheimer’s disease. These blockages, easily seen on standard MRI scans, are tied to toxic protein buildup linked to memory loss and cognitive decline. In ...
Jan. 1, 2026 A new study suggests the vagus nerve may be one of the heart’s most important defenders against aging. Researchers found that keeping this nerve connected to the heart helps protect heart cells and maintain strong pumping ability. Even partial ...
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Jan. 7, 2026 Researchers in Japan built a miniature human brain circuit using fused stem-cell–derived organoids, allowing them to watch the thalamus and cortex interact in real time. They found that the ...
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Jan. 3, 2026 The brain constantly blends split-second reactions with slower, more thoughtful processing, and new research shows how it pulls this off. Scientists discovered that brain regions operate on different ...
Jan. 2, 2026 Attention depends on the brain’s ability to filter out distractions, but new research suggests this works best when background brain activity is quieter. Scientists found that lowering certain ...
Jan. 1, 2026 Scientists studying Alzheimer’s in African Americans have uncovered a striking genetic clue that may cut across racial lines. In brain tissue from more than 200 donors, the gene ADAMTS2 was ...
Dec. 31, 2025 New research reveals a brighter side of ADHD, showing that adults who recognize and use their strengths feel happier, healthier, and less stressed. People with ADHD were more likely to identify ...
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