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Aging

·October 6, 2025·6 min read

Brain’s Shape Could Reveal the Earliest Signs of Alzheimer’s

A groundbreaking study reveals that aging alters not just the size but the shape of the human brain, reshaping regions in ways linked to memory and reasoning decline. Researchers found that as people age, the lower and front areas of the brain expand outward, while the upper and back regions compress inward.

This shows the outline of a person's head and an older man.

Featured Neurology Neuroscience

·October 6, 2025·6 min read

Head Injuries in Adults Linked to Dementia

A large-scale Canadian study has found that older adults who sustain traumatic brain injuries (TBI) face a significantly higher risk of developing dementia, needing home care, or being admitted to long-term care. Researchers found that TBIs, most commonly caused by falls, increase dementia risk by up to 69% in the first five years following injury.

Featured Neuroscience

·October 3, 2025·9 min read

How the Brain’s GPS System Falters With Age

Spatial memory — the ability to recall “where” — is one of the first cognitive skills to decline in aging and a hallmark of dementia. Researchers found that in older mice, grid cells in the medial entorhinal cortex, which act like the brain’s GPS, became unstable and less precise.

Featured Genetics Neuroscience

·October 1, 2025·5 min read

Dietary RNA Molecules May Hold the Key to Slowing Cellular Aging

Living longer doesn’t always mean living healthier, and researchers are exploring how diet can extend healthspan. A study in worms shows that specific dietary RNA molecules protect cells from harmful protein build-up, a major driver of aging and age-related disease.

This shows the outline of a person, DNA, and a clock.

Featured Genetics Neuroscience

·September 26, 2025·4 min read

Lifelong Social Bonds Can Slow Biological Aging at the Cellular Level

A new study shows that lifelong social advantages—from early parental warmth to adult friendships and community support—can slow biological aging. Researchers analyzed over 2,100 participants and found that those with stronger, more consistent social connections had younger biological ages according to epigenetic clocks GrimAge and DunedinPACE.

This shows older people walking in a park and a brain.

Featured Neurology Neuroscience

·September 16, 2025·7 min read

Lifestyle Changes Show Power to Prevent Alzheimer’s

A growing body of research underscores that Alzheimer’s and cognitive decline are not inevitable parts of aging. Lifestyle interventions targeting exercise, diet, social engagement, and cognitive stimulation have been shown in large clinical trials to improve brain function and slow decline.

This shows a brain and an aging timeline.

Featured Neuroscience

·September 2, 2025·5 min read

Attention and Focus Abilities Peak Between Ages 27 and 36

Researchers analyzed 139 neuroimaging studies spanning ages 5 to 85 to map the brain’s activity in cognitive control. They found an inverted U-shaped lifespan trajectory, with brain activity rising through adolescence, peaking between ages 27 and 36, and then gradually declining.

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Featured Neuroscience Open Neuroscience Articles Psychology

·August 28, 2025·3 min read

The Midlife “Unhappiness Hump” Has Vanished, But at a Cost

A new large-scale study finds that the long-observed “unhappiness hump,” where mental distress peaked in midlife, has disappeared. Instead, younger people now report the highest levels of anxiety, depression, and stress, with ill-being declining across the lifespan.

This shows an older man surrounded by faces with different expressions.

Featured Neurology Neuroscience

·August 26, 2025·3 min read

Elderly Positivity Bias May Signal Early Cognitive Decline

New research suggests that the tendency of older adults to misinterpret neutral or negative emotions as positive may be a warning sign of cognitive decline. In a study of 665 participants, positivity bias was associated with poorer cognitive performance but not with emotional decline such as depression.

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Featured Neuroscience Psychology

·August 21, 2025·4 min read

Education Gap Is Speeding Up Aging in Millions of People

A new study reveals that Americans with less education are aging faster than those with more schooling, and the divide has widened over the past three decades. Biological age—measuring internal health rather than years lived—shows that people with a college degree experience slower aging.

Featured Neuroscience

·August 21, 2025·4 min read

Long-Term Nicotine Use Delays Aging-Linked Motor Decline

A new study demonstrates that long-term oral nicotine administration reprograms aging-related metabolism and slows motor decline in mice. By targeting the sphingolipid-energy axis, nicotine improved energy homeostasis, preserved gut microbial diversity, and supported neuromuscular resilience.

Featured Genetics Neuroscience

·August 20, 2025·5 min read

400 Genes Identified as Key Drivers of Aging

A massive genetic study has identified more than 400 genes that drive different forms of unhealthy aging, from cognitive decline to metabolic problems. The findings show that frailty is not a single condition but multiple subtypes with distinct biological pathways.