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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.

A wife’s account reveals the hidden burden of young-onset Alzheimer’s caregiving

Karina Acton Reid recounts caring for her husband with young-onset Alzheimer’s disease presenting as posterior cortical atrophy while raising two young children. Her perspective shows how visual disorientation, diagnostic delays, changing family roles, and inadequate age-appropriate support affect the entire household.

16 Jul 2026

Blood p-tau217 levels signal cognitive impairment risk years before symptoms emerge

Higher baseline plasma p-tau217 was associated with greater 5- and 10-year risks of cognitive impairment and faster cognitive decline among 2,684 cognitively unimpaired adults. Very high levels corresponded to an estimated 38% risk at five years, but selected cohorts and limited long-term data mean routine screening and individualized prediction remain premature.

16 Jul 2026

Researchers identify new genetic pathway driving epilepsy and seizures

Researchers have uncovered a novel biological pathway that can lead to seizures when disrupted. The findings also provide a new approach to improve the diagnosis of epilepsy, for which a genetic cause cannot be found in about 50 % of individuals with the condition

16 Jul 2026

Researchers identify immune cell receptor that drives organ aging process

We may age at different rates, but none of us escapes aging. A study in mice and in human cells by Stanford Medicine researchers pins much of the blame on a particular type of immune cell's increased inability, with advancing age, to gobble up another immune cell type.

16 Jul 2026

Brain signals explain speech communication differences in autistic children

Why do some children with autism communicate more easily than others, even when they hear the same words?

16 Jul 2026

Study suggests lipid droplet accumulation is a conserved feature of senescent cells

A new research paper was published in Volume 18 of Aging on July 1, 2026, titled "Senescent cells accumulate lipid droplets."

16 Jul 2026

PET imaging reveals widespread brain receptor deficits in schizophrenia

A groundbreaking study using positron emission tomography (PET) imaging has found that patients with schizophrenia had significantly lower muscarinic acetylcholine M1 receptor availability (~13% to 19%) across multiple brain regions compared with healthy individuals.

16 Jul 2026

Long-term study proves brain stimulation safely restores touch

What if people who have lost the ability to feel their hands could get that sense back - not through a prosthetic glove, but through tiny pulses of electricity delivered directly to the brain?

16 Jul 2026

WHO updates guidelines to reduce risk of dementia worldwide

The World Health Organization (WHO) today released updated guidelines on reducing the risk of cognitive decline and dementia, providing countries with evidence-based recommendations to help prevent or delay the onset of dementia across the life course.

16 Jul 2026

Sleeping longer may signal early Alzheimer's-related brain changes

Regularly sleeping long hours each night is associated with higher levels of an Alzheimer's-related protein in the blood, even accounting for other health factors, suggests a new study from UT Health San Antonio, the academic health center of The University of Texas at San Antonio.

15 Jul 2026

Weight loss drugs may reduce binge eating disorder symptoms

Drugs commonly used for weight loss, known as GLP-1 receptor agonists, have been found to reduce the key symptoms of binge eating disorder, in a new review of evidence led by University College London (UCL) researchers.

15 Jul 2026

Epidurals during labor show no significant risks to newborns

Having an epidural during labor is not associated with clinically significant increased risks of harm to newborn babies, including brain injury, severe breathing problems, sepsis and death, or cerebral palsy later in childhood.

15 Jul 2026

Foreign-born Black adults show lower stroke risk than Americans

For Black individuals in the United States, being born in another country was associated with a lower risk of stroke, according to a study published July 15, 2026, in Neurology®, the medical journal of the American Academy of Neurology.

15 Jul 2026

Walking protein structure explains how cells activate molecular motors

A nerve cell resembles a vast tree with branches that communicate with thousands of other cells. To function, it depends on a motor protein that walks on two legs, hauling urgent cargo from the center of the cell to the faraway tips of every branch.

15 Jul 2026

Scientists develop ultrathin skin sensors for seamless health tracking

While wearable health sensors are becoming increasingly common, current iterations are awkward to wear.

15 Jul 2026

New drug candidate improves Parkinson's treatment in animal models

For many people with Parkinson's disease, the body stops moving the way it used to. A hand may tremble at rest. Muscles may stiffen.

15 Jul 2026

Brain’s immune cells play key role in maintaining stability of neuronal networks in Alzheimer's disease

Researchers at Trinity College Dublin have discovered that microglia – the main immune cells of the brain – play a critical role in maintaining the stability of neuronal networks in Alzheimer's disease.

15 Jul 2026

Self-assembling antibody drugs successfully target multiple cancer receptors

Modern anticancer medications that combine tumor-fighting drugs with proteins that specifically target cancer cells are a relatively new class of drug, often given to patients for whom standard chemotherapy has not worked.

15 Jul 2026

New photoswitchable drugs restore light perception in blind animals

Blinding diseases caused by the degeneration of photoreceptors, such as age-related macular degeneration (AMD) and retinitis pigmentosa (RP), affect 200 million people worldwide and represent the leading causes of visual impairment and blindness.

15 Jul 2026

Study sheds light on the prognostic value of blood test for predicting cognitive impairment risk

A blood test for the biomarker phosphorylated tau 217 (p-tau217) recently received federal clearance, but questions have emerged around the extent to which such tests can accurately predict whether a cognitively healthy individual will go on to develop cognitive impairment-a key symptom of Alzheimer's disease.

15 Jul 2026