Insomnia Research News

February 6, 2026

Top Headlines

A Hidden Brain Effect of Prenatal Alcohol Exposure

Feb. 6, 2026 New research using rhesus monkeys suggests that the brain’s relationship with alcohol may begin forming long before a person ever takes a drink. Scientists found that exposure to alcohol before birth reshaped the brain’s dopamine system, a key ...

Sound Machines Might Be Making Your Sleep Worse

Feb. 4, 2026 Sound machines may not be the sleep saviors many believe. Researchers found that pink noise significantly reduced REM sleep, while simple earplugs did a better job protecting deep, restorative sleep from traffic noise. When pink noise was combined ...

Late Bedtimes Are Linked to Higher Heart Disease Risk

Jan. 30, 2026 People who naturally stay up late may be putting their hearts under added strain as they age. A large study tracking more than 300,000 adults found that middle-aged and older night owls had poorer overall heart health and a higher risk of heart ...

How Cancer Disrupts the Brain and Triggers Anxiety and Insomnia

Jan. 18, 2026 Scientists have discovered that breast cancer can quietly throw the brain’s internal clock off balance—almost immediately after cancer begins. In mice, tumors flattened the natural daily rhythm of stress hormones, disrupting the brain-body ...

One Protein May Decide Whether Brain Chemistry Heals or Harms

Jan. 15, 2026 Tryptophan does far more than help us sleep—it fuels brain chemistry, energy production, and mood-regulating neurotransmitters. But as the brain ages or develops neurological disease, this delicate system goes awry, pushing tryptophan toward ...

The Simplest Way Teens Can Protect Their Mental Health

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 ...

A Weak Body Clock May Be an Early Warning for Dementia

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 ...

Scientists Tested Intermittent Fasting Without Eating Less and Found No Metabolic Benefit

Jan. 3, 2026 Time-restricted eating has been widely promoted as a simple way to boost metabolic health, but new research paints a more complicated picture. When calorie intake stayed the same, an eight-hour ...

Scientists Discover Why Mental Disorders so Often Overlap

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 ...

ADHD Drugs Don’t Work the Way We Thought

Dec. 29, 2025 ADHD stimulants appear to work less by sharpening focus and more by waking up the brain. Brain scans revealed that these medications activate reward and alertness systems, helping children stay interested in tasks they would normally avoid. The ...

Parkinson’s Breakthrough Changes What We Know About Dopamine

Dec. 22, 2025 A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an engine. When scientists manipulated dopamine during ...

Anxiety and Insomnia Linked to Sharp Drops in Key Immune Cells

Dec. 15, 2025 Natural killer cells act as the immune system’s rapid-response team, but the stress of anxiety and insomnia may be quietly thinning their ranks. A study of young women in Saudi Arabia found that both conditions were linked to significantly fewer ...

Latest Headlines

updated 11:41am EST

Doctors Test Brain Cell Implants to Restore Movement in Parkinson’s

Feb. 6, 2026 Scientists at Keck Medicine of USC are testing an experimental stem cell therapy that aims to restore the brain’s ability to produce dopamine, the chemical whose loss drives Parkinson’s disease. ...

Scientists Reveal a Hidden Hormone Switch for Learning

Nov. 21, 2025 Researchers uncovered how estrogen subtly reshapes learning by strengthening dopamine reward signals in the brain. Rats learned faster when estrogen levels were high and struggled when the ...

Think Melatonin Is Safe? New Research Reveals a Hidden Heart Risk

Nov. 4, 2025 Long-term melatonin use for sleep problems may come with unexpected heart dangers. Researchers found that chronic users were almost twice as likely to die and 3.5 times more likely to be hospitalized ...

Your Bedroom Glow Might Be Quietly Damaging Your Heart

Nov. 3, 2025 Boston researchers linked nighttime light exposure to greater stress-related brain activity and inflamed arteries, signaling a higher risk of heart disease. The study suggests that artificial light ...

Alzheimer’s Might Be Powered by a Broken Sleep-Wake Cycle

Nov. 3, 2025 Disrupted sleep patterns in Alzheimer’s disease may be more than a symptom—they could be a driving force. Researchers at Washington University found that the brain’s circadian rhythms are ...

Resetting the Body’s Rhythm Could Protect the Brain from Alzheimer’s

Nov. 1, 2025 Researchers discovered that altering the body’s natural rhythm can help protect the brain from Alzheimer’s damage. By turning off a circadian protein in mice, they raised NAD+ levels and reduced ...

Scientists Say This Simple Diet Change Can Improve Sleep Fast

Oct. 25, 2025 A new study shows that eating more fruits and vegetables during the day can significantly improve sleep that same night. Researchers found a clear link between diet quality and sleep depth, with ...

C-Section Births Linked to Sleepless Nights and Painful Recoveries

Oct. 13, 2025 Women who undergo C-sections are more likely to experience debilitating pain and sleep disorders in the months after giving birth. Researchers found both qualitative and large-scale data supporting ...

Poor Sleep Speeds Brain Aging and May Raise Dementia Risk

Oct. 2, 2025 New research shows that poor sleep could make the brain appear years older than it really is. Using MRI scans and machine learning, scientists found a clear link between unhealthy sleep patterns and ...

Stunning Images Reveal How Antibiotics Shatter Bacterial Defenses

Sep. 29, 2025 Researchers have revealed how polymyxins, crucial last-resort antibiotics, break down bacterial armor by forcing cells to overproduce and shed it. Astonishingly, the drugs only kill bacteria when ...

Long Commutes and Small Homes Are Wrecking Sleep

Sep. 30, 2025 Tokyo residents face a trade-off between home size and commute time when it comes to sleep health. A new study shows longer commutes increase both insomnia and daytime sleepiness, while smaller ...

Hidden Bacterial Molecules in the Brain Reveal New Secrets of Sleep

Sep. 25, 2025 New studies show that a bacterial molecule, peptidoglycan, is present in the brain and fluctuates with sleep patterns. This challenges the idea that sleep is solely brain-driven, instead suggesting ...

Stanford Scientists Reveal Simple Shift That Could Prevent Strokes and Obesity Nationwide

Sep. 15, 2025 Switching clocks twice a year disrupts circadian rhythms in ways that harm health. Stanford scientists found permanent standard time would reduce obesity and stroke rates nationwide, making it the ...

Sleepless Nights May Raise Dementia Risk by 40%, Mayo Clinic Reveals

Sep. 14, 2025 Chronic insomnia may do more than leave you groggy, it could speed up brain aging. A large Mayo Clinic study found that people with long-term sleep troubles were 40% more likely to develop dementia ...

The Sleep Switch That Builds Muscle, Burns Fat, and Boosts Brainpower

Sep. 8, 2025 UC Berkeley researchers mapped the brain circuits that control growth hormone during sleep, uncovering a feedback system where sleep fuels hormone release, and the hormone regulates wakefulness. The ...

Overworked Neurons Burn out and Fuel Parkinson’s Disease

Sep. 3, 2025 Overactivation of dopamine neurons may directly drive their death, explaining why movement-controlling brain cells degenerate in Parkinson’s. Mice with chronically stimulated neurons showed the ...

Study Finds Cannabis Improves Sleep Where Other Drugs Fail

Sep. 2, 2025 A long-term study following insomnia patients treated with cannabis-based medical products revealed sustained improvements in sleep quality, mood, and pain management over 18 months. Most ...

Losing Weight but Gaining Weakness? What Ozempic Might Be Doing to Your Muscles

Aug. 10, 2025 Ozempic’s weight loss benefits might come at the cost of muscle strength, even if muscle size remains relatively stable. This raises significant concerns for older adults, who are already at risk ...

Tai Chi, Yoga, and Jogging Rival Pills for Beating Insomnia

July 17, 2025 Yoga, Tai Chi, walking, and jogging may be some of the best natural remedies for improving sleep and tackling insomnia, according to a large analysis comparing various treatments. While cognitive ...

Can’t Sleep, Can’t Focus, Can’t Thrive? ADHD and Insomnia May Be a Vicious Cycle

July 16, 2025 Struggling to sleep might be the hidden reason why adults with ADHD traits often feel less satisfied with life. New research reveals a strong link between insomnia and reduced well-being in people ...

The Hidden Ways Light at Night Damages Your Brain, Mood, and Metabolism

Aug. 8, 2025 Neuroscientist Dr. Randy J. Nelson explores how artificial light at night disrupts our bodies, from immune health to mood. His work bridges lab research, clinical trials, and everyday solutions while ...

Parkinson’s Reversal? One Drug Brings Dying Brain Cells Back to Life

July 3, 2025 Stanford researchers discovered that dialing down an overactive enzyme, LRRK2, can regrow lost cellular “antennae” in key brain cells, restoring vital dopamine communication and neuroprotective ...

Sleep-in Science: How 2 Extra Weekend Hours Can Calm Teen Anxiety

June 13, 2025 Teens might finally have a good reason to sleep in on weekends within limits. A new study reveals that teenagers who get up to two extra hours of sleep on weekends show fewer anxiety symptoms than ...

Timing, Consistency of Activity Linked to Better Fitness

May 28, 2025 The timing and consistency of your daily activity might be associated with improved cardiorespiratory fitness and walking ...

Daytime Boosts Immunity, Scientists Find

May 23, 2025 Daylight can boost the immune system's ability to fight ...

Newfound Mechanism Rewires Cellular Energy Processing for Drastic Weight Loss

May 21, 2025 Scientists have uncovered a startling metabolic twist: mice engineered to lack the amino acid cysteine, and fed a cysteine-free diet, shed nearly a third of their body weight in just a week. The ...

A New Technology for Extending the Shelf Life of Produce

May 21, 2025 Researchers developed a way to extend the shelf life of vegetables by injecting them with melatonin using biodegradable ...

Survival Trick: Pathogen Taps Iron Source in Immune Cells

May 19, 2025 The body defends itself against pathogens by depriving them of vital iron. However, this strategy doesn't always succeed against Salmonella. Researchers have discovered that these bacteria ...

Don't Hit Snooze on New Research About Waking Up Each Morning

May 19, 2025 Sleep experts recommend against snoozing after a wake-up alarm, but a study shows the practice is common, with more than 50% of sleep sessions logged ending in a snooze alarm and users spending 11 ...

Scientists Discover New Way the Brain Learns

May 14, 2025 Neuroscientists have discovered that the brain uses a dual system for learning through trial and error. This is the first time a second learning system has been identified, which could help explain ...