David Nield

Articles by David Nield

Sleepless Nights Could Drive Half a Million Cases of Dementia in The US Each Year - ScienceAlert

Health February 11, 2026

Scientists have attempted to put a number on how many dementia cases could be caused by insomnia each year and their figure is similar to the population of a mid-sized US city. Researchers from seveοΏ½...

Breakthrough: Scientists Created a 'Universal' Kidney To Match Any Blood Type - ScienceAlert

Health February 7, 2026

After a decade of work, researchers are closer than ever to a key breakthrough in kidney transplants: being able to transfer kidneys from donors with different blood types than the recipients, which οΏ½...

Bacteria at The Back of Your Eye May Be Linked With Alzheimer's Progress - ScienceAlert

Health February 6, 2026

A common bacterium usually found in the respiratory system appears to be linked to cognitive decline and Alzheimer's disease when it's present in the retina. Chlamydia pneumoniae often responsible fοΏ½...

Yawning Does Something Surprising in Your Brain, MRI Scans Reveal - ScienceAlert

Health February 6, 2026

Yawning has an unusual and unexpected effect on the flow of fluid protecting the brain, a recent study reveals, though it's not yet clear what the impact of this shift might be. According to researcοΏ½...

We Were Wrong About How Much Your Genes Shape Your Lifespan - ScienceAlert

Health February 4, 2026

Putting aside the risk of an early grave by accident or injury, your genes may have a much greater impact on your lifespan than previously thought, according to an unparalleled study of twin data. TοΏ½...

Study Reveals a Turning Point When Men's Heart Attack Risk Accelerates - ScienceAlert

Health February 3, 2026

Screening for heart attack risk should be happening earlier for men, according to a new study that found the risk of cardiovascular disease starts climbing when men are in their mid-30s significantlyοΏ½...

Sleep Loss Is Physically Damaging Your Brain Cells, Study Suggests - ScienceAlert

Health February 1, 2026

A study led by researchers at the University of Camerino in Italy found that the fatty insulation protecting neurons can be harmed when we go without sleep, compromising our mental processing. ThrouοΏ½...

Mouse Study Flags a Serious Downside to Popular Weight-Loss Diet - ScienceAlert

Health January 31, 2026

The high-fat, low-carb ketogenic diet has been growing in popularity in recent years, following claims of rapid weight loss. But new research in mice suggests there are some seriously concerning sideοΏ½...

10,000 Brain Scans Reveal Why Your Memory Gets Worse With Age - ScienceAlert

Health January 29, 2026

Our episodic memory the ability to recall past events and experiences is known to decline as we age. Exactly how and why has remained something of a mystery, and a recent study goes some way towards οΏ½...

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

Health January 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 analysiοΏ½...