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circadian clock

This shows a brain with a night and day background.

·November 13, 2025·6 min read

Brain Learning Power Peaks at Specific Times of Day

A new study reveals that the brain’s responsiveness and capacity for learning shift with the time of day, governed by molecules like adenosine that link metabolism, sleep, and neural signaling. Using optogenetics, researchers found that identical stimuli activated brain cells differently at sunrise versus sunset, suggesting that neuronal excitability and plasticity follow daily rhythms.

This shows the outline of a head and a clock.

Brain Cancer Featured Neurology Neuroscience

·September 8, 2025·2 min read

Chemotherapy Drug Found to Disrupt Circadian Clock

Nearly half of cancer patients suffer circadian rhythm disruptions during chemotherapy, worsening side effects. A new study using mice shows that paclitaxel, a common breast cancer drug, may disturb the brain’s master clock without directly entering it.

This shows a mom holding a baby with a clock in the background.

Featured Neuroscience

·September 6, 2025·5 min read

Breast Milk Has a Built-In Body Clock for Babies

Breast milk is more than nourishment—it delivers circadian cues that may shape infant sleep, immunity, and metabolism. Researchers analyzing milk samples found that melatonin peaked at night and cortisol in the early morning, while other immune-related proteins remained steady.

Featured Genetics Neuroscience

·July 22, 2025·5 min read

How Your Body Clock Stays on Time Despite Temperature Changes

Researchers uncovered how our biological clocks keep a 24-hour rhythm even as temperatures fluctuate. Using physics-based models, they discovered that at higher temperatures, gene activity rhythms become distorted—rising faster and falling slower—to maintain the cycle’s duration.

Featured Neuroscience

·July 9, 2025·6 min read

Artificial Light Undermines Health: Aligning Modern Life With Biological Clocks

New research reveals that artificial light at night disrupts more than sleep, affecting immune function, metabolism, mood, and brain health. Circadian rhythms, finely tuned over millions of years, regulate critical biological processes and can be thrown off by modern lighting and irregular schedules.

Featured Genetics Neuroscience

·July 7, 2025·8 min read

Early Meals Boost Health, but Genetic Clock Shapes When We Eat

Our bodies process food differently depending on the time of day, and eating later has been linked to poorer metabolic health. A study of twins found that those who consumed most of their daily calories earlier had better insulin sensitivity and lower risk factors for diabetes and obesity.

Featured Genetics Neuroscience Psychology

·May 29, 2025·5 min read

Seasonal Sunlight Still Shapes Human Sleep

Despite modern lighting and lifestyle, human sleep patterns remain deeply influenced by seasonal changes in sunlight. New research reveals that our circadian rhythms track daylight shifts across seasons, impacting mood, sleep alignment, and overall health.

This shows the outline of a teen, a clock and a brain.

Featured Genetics Neuroscience

·February 18, 2025·5 min read

How the Body’s Clock Influences Eating and Weight Gain in Teens

A new study reveals that the body’s internal clock plays a key role in eating behavior, influencing when and how much adolescents eat. Researchers found that teens with overweight or obesity consumed significantly more calories later in the day compared to those with a healthy weight. By isolating circadian influences from environmental and behavioral factors, they confirmed that food intake peaks in the late afternoon and evening regardless of sleep duration or external time cues.

Featured Neurology Neuroscience

·December 18, 2024·4 min read

Circadian Clock Influences Inflammation and Disease

New research reveals how the body’s circadian clock regulates macrophage activity, influencing immune system inflammation throughout the day. Activation of the NLRP3 inflammasome, a key component in the immune response, peaks during the morning when macrophages are most efficient.

Brain Cancer Featured Neurology Neuroscience

·December 12, 2024·8 min read

Glioblastoma Syncs With the Body’s Internal Clock

Glioblastoma, an aggressive brain cancer, syncs its internal clock to the host’s circadian rhythms, leveraging daily hormone cycles for growth. Blocking these signals slowed tumor progression in mice and revealed that the timing of treatments like dexamethasone (DEX) critically influences outcomes.

Featured Neuroscience

·December 5, 2024·5 min read

Mapping the Brain’s 24-Hour Clock

Researchers have created the first complete map of the circadian clock in the Drosophila brain, revealing it consists of at least 240 neurons—far more than previously thought. This detailed map shows similarities between the clock mechanisms of insects and vertebrates, offering new insights into how rhythms like sleep, feeding, and hormone release are coordinated.

This shows a brain and a person sleeping.

Featured Neuroscience

·November 25, 2024·6 min read

Brain’s Locus Coeruleus Revealed as Key to Sleep Transitions

A new study uncovers the role of the brain's locus coeruleus (LC) in regulating sleep cycles, managing transitions between NREM and REM sleep. This brainstem region alternates between activity peaks and troughs during sleep, acting like a clock to control sleep-state shifts.

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circadian clock

Brain Learning Power Peaks at Specific Times of Day

Chemotherapy Drug Found to Disrupt Circadian Clock

Breast Milk Has a Built-In Body Clock for Babies

How Your Body Clock Stays on Time Despite Temperature Changes

Artificial Light Undermines Health: Aligning Modern Life With Biological Clocks

Early Meals Boost Health, but Genetic Clock Shapes When We Eat

Seasonal Sunlight Still Shapes Human Sleep

How the Body’s Clock Influences Eating and Weight Gain in Teens

Circadian Clock Influences Inflammation and Disease

Glioblastoma Syncs With the Body’s Internal Clock

Mapping the Brain’s 24-Hour Clock

Brain’s Locus Coeruleus Revealed as Key to Sleep Transitions

Supplement Shows Promise in Blocking Amyloid in Alzheimer’s

Early Brain Activity Differences Predict Addiction Risk in Boys vs Girls

Thrill Fatigue: How Dopamine Devalues Repeated Rewards

AI Interviews Outperform Standard Mental Health Rating Scales

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