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The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a typical mammal with an equivalent body size.

Smoking cessation may reduce dementia risk for people who avoid major weight gain

Quitting smoking may be associated with a lowered risk of dementia, especially for people who avoid major weight gain after quitting, according to a study published May 20, 2026, in Neurology, the medical journal of the American Academy of Neurology.

20 May 2026

Migraine with aura linked to higher ischemic stroke risk in middle-aged and older adults

Migraine with aura was associated with an increased risk of ischemic stroke in middle-aged and older people, according to a study published May 20, 2026, in Neurology Open Access, an official journal of the American Academy of Neurology.

20 May 2026

Brain cell division errors may drive cancer and developmental disorders

University of Virginia School of Medicine scientists have revealed how mistakes in the final step of cell division can have dire consequences for developing brain cells.

20 May 2026

Poor sleep may flag early Alzheimer’s risk in genetically vulnerable older women

Poorer subjective sleep quality was linked to worse visual memory and greater limbic tau burden in older women with higher genetic risk for Alzheimer’s disease. The findings suggest sleep complaints may help identify women at elevated risk for early AD-related brain and cognitive changes, but larger longitudinal studies are needed.

20 May 2026

Wastewater tracking catches hospital fungus before patients show symptoms

A new UNLV-led wastewater surveillance study brings scientists one step closer in the global race to detect and deter skyrocketing cases of a potentially deadly drug-resistant fungus that puts hospital patients at risk of serious blood, heart, or brain infections.

20 May 2026

Cytokine-armored CAR-T cell therapy successfully attacks aggressive brain tumors in mice

Scientists at the UCLA Health Jonsson Comprehensive Cancer Center have developed a new cytokine-armored CAR-T cell therapy that helps the immune system better attack aggressive brain tumors in mice while reducing dangerous side effects that have long limited immune-based treatments for glioblastoma, one of the deadliest and most treatment-resistant brain cancers.

20 May 2026

Scientists link schizophrenia risk gene to early cortical neuron changes

Researchers at King's College London have identified the biological nature and timing of changes in human cortical neurons caused by altering activity of a schizophrenia-associated gene in developing human neurons.

20 May 2026

Restoring ADAR2 enzyme reduces metastatic spread in osteosarcoma

Osteosarcoma is the most common primary bone cancer in children, adolescents, and young adults. Although chemotherapy and surgery have improved survival for localized disease, outcomes remain poor when tumors spread to the lungs or return after treatment.

20 May 2026

Anti-inflammatory drug tocilizumab shows promise for difficult-to-treat depression

Immunotherapy could be a promising new treatment option for patients with difficult-to-treat depression. This is a key finding from a University of Bristol-led pilot randomised controlled clinical trial, published in JAMA Psychiatry today [20 May].

20 May 2026

Higher ferritin threshold could detect childhood iron deficiency much earlier

Many cases of iron deficiency in school-aged children could be diagnosed earlier, according to a new study published in Blood Red Cells & Iron, a journal of the American Society of Hematology (ASH).

20 May 2026

Neuroplex pipeline monitors nine neuronal populations in moving mice

Scientists at the Max Planck Florida Institute for Neuroscience (MPFI), in collaboration with ZEISS and MetaCell, have developed a powerful new imaging pipeline called Neuroplex.

20 May 2026

Aerobic exercise mitigates nanoplastic damage in female zebrafish

Using female zebrafish as a model, researchers have found that aerobic exercise may influence various connections in the body to lessen the damaging health impacts of environmental nanoplastics.

20 May 2026

Digital pens and tablets could offer non-invasive tools for routine dementia screening

Handwriting requires a combination of fine motor control and a complex set of mental skills, such as selecting, organizing, and interpreting sensory information, making it a cognitively challenging task. Because of its high demand on the brain, it is a potential marker of cognitive decline, especially as we age. Then, our handwriting often becomes slower or choppier.

20 May 2026

How food and alcohol cues leave different signatures in the brain

Food and alcohol cues appear to engage partially distinct EEG oscillatory patterns, with food cues linked mainly to increased delta activity and alcohol-related processing showing alpha and delta differences in key contrasts. The effects were strongest in participants with relatively higher AUDIT scores, but neural changes were small and subjective cue responses were more robust.

20 May 2026

Anxiety and depression linked to mirror opposite sides of the brain's emotional center

A longitudinal study tracking children over a period of seven years identified distinct brain-wave patterns emerging from age 9 can forecast a child's vulnerability to anxiety or depression by age 13.

20 May 2026

Study links pediatric sedation strategies with later neurocognitive outcomes

A new Penn Nursing study suggests that the specific sedatives used during critical illness in early childhood may have long-term implications for a child's neurocognitive development.

19 May 2026

Neutrophils may play unexpected role in schizophrenia development

The most common white blood cells in your body - immune cells called neutrophils - can make a protein nobody knew they were making, Stanford Medicine investigators have discovered.

19 May 2026

How does the brain recognize new faces and places in milliseconds?

This Communications Biology study used intracranial EEG in 22 epilepsy patients to map how the human brain processes new images of faces and places within milliseconds.. It found that visual information flows from the occipital cortex through parallel dorsal and ventral pathways toward frontal and limbic regions, with distinct timing patterns for faces and places.

19 May 2026

Sensory nerve signals found to block lung cancer immunotherapy

Researchers at the Francis Crick Institute have revealed that sensory nerve signals interfere with the immune system's response to lung cancer.

19 May 2026

Experimental smartphone game quickly identifies patients with depression

An experimental diagnostic tool in the form of a computer game was able to quickly identify patients with depression based on anhedonia, a key feature of the disease, a new study shows.

19 May 2026