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Circadian rhythm sleep disorder
Circadian rhythm sleep disorders are a family of sleep disorders affecting the timing of sleep. People with circadian rhythm sleep disorders are unable to sleep and wake at the times required for normal work, school, and social needs. They are generally able to get enough sleep if allowed to sleep and wake at the times dictated by their body clocks. Unless they have another sleep disorder, their sleep is of normal quality. Humans have biological rhythms, known as circadian rhythms, which are controlled by a biological clock and work on a daily time scale. Due to the circadian clock, sleepiness does not continuously increase as time passes. Instead, the drive for sleep follows a cycle, and the body is ready for sleep and for wakefulness at different times of the day.
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Mind & Brain News
August 21, 2025
Aug. 21, 2025 — A large-scale review finds that acetaminophen use during pregnancy may increase the risk of autism and ADHD in children. The strongest studies showed the clearest links, pointing to biological ...
Aug. 21, 2025 — Scientists have finally uncovered the missing link in how our bodies absorb queuosine, a rare micronutrient crucial for brain health, memory, stress response, and cancer defense. For decades, ...
Aug. 20, 2025 — Scientists at UCSF have uncovered a surprising culprit behind brain aging: a protein called FTL1. In mice, too much FTL1 caused memory loss, weaker brain connections, and sluggish cells. But when researchers blocked it, the animals regained youthful ...
Aug. 20, 2025 — In a health system where speed often replaces empathy, researchers highlight the life-changing power of listening. Beyond simple questions, values-driven listening—marked by presence, curiosity, and compassion—can transform both patients and ...
Aug. 20, 2025 — Researchers discovered two brain regions that work as a “neural compass,” keeping people oriented in virtual city navigation. These areas tracked direction consistently, hinting at new ways to detect and monitor neurological disorders that cause ...
Aug. 19, 2025 — MSU researchers discovered that microbes begin shaping the brain while still in the womb, influencing neurons in a region critical for stress and social behavior. Their findings suggest modern birth practices that alter the microbiome may have ...
Aug. 19, 2025 — Researchers analyzing 33 studies found strong evidence that highly sensitive people are more prone to depression and anxiety but also more likely to benefit from therapy. Since about 31% of the population is highly sensitive, experts argue that ...
Aug. 18, 2025 — A sweeping review of 67 trials has cast doubt on the use of ketamine and similar NMDA receptor antagonists for chronic pain relief. While ketamine is frequently prescribed off-label for conditions like fibromyalgia and nerve pain, researchers found ...
Aug. 12, 2025 — THC levels in cannabis have soared in recent years, raising the risk of psychosis—especially in young, frequent users. Studies reveal a strong connection between cannabis-induced psychosis and schizophrenia, making early cessation and treatment ...
Aug. 12, 2025 — A study finds that people are more open to plant-based eggs when they’re part of familiar foods, like pancakes, rather than served plain. While taste and appearance still favor regular eggs, vegan eggs score higher on environmental and ethical ...
Aug. 12, 2025 — A six-month randomized trial challenges the idea that eating more sweet foods increases a person’s preference for sweetness. Participants on diets with high, low, or mixed sweetness levels showed no changes in their sweet taste preferences, energy ...
Aug. 12, 2025 — Researchers have discovered that parts of the human brain age more slowly than previously thought—particularly in the region that processes touch. By using ultra-high-resolution brain scans, they found that while some layers of the cerebral cortex ...
Latest Headlines
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Aug. 15, 2025 — Scientists at UC San Diego have discovered a small but powerful section of DNA, called HAR123, that could help explain what makes the human brain so unique. Instead of being a gene, HAR123 acts like ...
Aug. 13, 2025 — UC Berkeley scientists found oxytocin is key for quickly forming strong friendships, but less critical for mate bonds. In prairie voles, a lack of oxytocin receptors delayed bonding and reduced ...
Aug. 13, 2025 — A sweeping international study has revealed that when faced with complex decisions, people across cultures—from bustling megacities to remote Amazon communities—tend to rely on their own judgment ...
Aug. 12, 2025 — Scientists have discovered a direct cause-and-effect link between faulty mitochondria and the memory loss seen in neurodegenerative diseases. By creating a novel tool to boost mitochondrial activity ...
Aug. 11, 2025 — Flinders University researchers found that forgiving yourself isn’t just about letting go. People stuck in guilt and shame often feel trapped in the past, and true healing comes from addressing ...
Aug. 8, 2025 — High-fat diets and obesity reshape astrocytes—star-shaped brain cells in the striatum that help regulate pleasure from eating. French researchers discovered that tweaking these cells in mice not ...
Aug. 4, 2025 — Scientists at Johns Hopkins have grown a first-of-its-kind organoid mimicking an entire human brain, complete with rudimentary blood vessels and ...
Aug. 4, 2025 — Your brain has its own elite defense team — and new research shows these "guardian" cells might be the real battleground for neurological diseases like Alzheimer’s and stroke. Scientists ...
Aug. 3, 2025 — Researchers discovered that PTSD may be driven by excess GABA from astrocytes, not neurons. This chemical imbalance disrupts the brain’s ability to forget fear. A new drug, KDS2010, reverses this ...
Aug. 3, 2025 — Could popular diabetes and weight loss drugs like Ozempic actually protect your brain from stroke damage, or prevent strokes altogether? Three new studies presented at a major neurosurgery conference ...