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David Nield

Articles by David Nield

Just 5 Minutes of Extra Activity Each Day Could Extend Your Life - ScienceAlert

HealthJanuary 28, 2026

We know that physical exercise is good for our health and longevity, but new research shows how even the smallest differences in our daily habits can lead to meaningful benefits. Based on an analysi…...

A Hidden Warning Sign Discovered in The Gut May Increase Cancer Risk - ScienceAlert

HealthJanuary 26, 2026

As we get older, chemical marks on our DNA slowly shift. Now, a study reveals this 'drift' in gut stem cells is fueled by inflammation and disrupted cell signaling, and it may help explain why our ri…...

Scientists May Have Found a Blueprint to Revive Old Cells - ScienceAlert

HealthJanuary 25, 2026

Many of the body's processes slow down or falter as we get older, including tissue regeneration. In a new study, researchers detail a promising method to get this vital repair work back up to speed. …...

Peptide Treatment Protects Brains After Stroke, Mouse Study Finds - ScienceAlert

HealthJanuary 24, 2026

When someone is affected by a stroke, the standard treatment to restore blood flow to the brain can both save their life and cause additional damage damage which a new, injectable nanomaterial promis…...

Scientists May Have Discovered a Way to Rejuvenate The Immune System - ScienceAlert

HealthJanuary 24, 2026

As we age, the immune system gradually declines in function, leaving the body more vulnerable to disease. Scientists have discovered a new way to rejuvenate a key component of immune function, potent…...

A Single Molecule May Explain How Blood Flow in The Brain Triggers Dementia - ScienceAlert

HealthJanuary 21, 2026

Reduced blood flow to the brain is thought to be a key factor in many forms of dementia, including Alzheimer's, and scientists have just identified a new mechanism regulating this flow, which may als…...

Exercise Is Emerging as a Powerful Treatment For Depression - ScienceAlert

HealthJanuary 16, 2026

Using exercise to treat depression can be as effective as therapy or antidepressants, according to a new review of previous trials, potentially offering an affordable and personalized approach to imp…...

Just One Gene May Be Responsible For Over 90% of Alzheimer's Cases - ScienceAlert

HealthJanuary 15, 2026

More than 9 out of 10 Alzheimer's cases could be driven by specific variations in a single gene and the protein it produces, a new study reveals, suggesting that treatments targeting this well-known …...

The State of Your Teeth Could Predict an Early Death, Study Shows - ScienceAlert

HealthJanuary 15, 2026

There's growing evidence that the number of missing teeth a person has is an indicator of their risk of dying earlier than expected, and new research suggests the condition of their remaining teeth m…...

Common Pesticide Exposure Linked With 2.7x Risk of Parkinson's Disease - ScienceAlert

HealthJanuary 14, 2026

Long-term exposure to the pesticide chlorpyrifos, widely used on US farms, has been linked to a more than 2.5-fold increase in the risk of developing Parkinson's disease, according to new research. …...