Free range DNA fragments from a simple blood draw may be signs of higher risk of frailty and dementia, a new study shows.

A new blood test could complement standard methods for lung cancer screening without the need for biopsy, researchers report.

Three of four blood tests used to identify people in early stage Alzheimer’s perform differently in Black people, putting them at risk for misdiagnosis.

A simple blood test and a smartwatch worn before and after hip replacement surgery can help predict when patients will get back on their feet.

In the US, one in 10 babies is born prematurely. A new blood test could identify women at risk.

A new method that uses blood droplets can detect athletes who have taken performance-enhancing drugs. Researchers say it might be tested at the Olympics.

The new blood test checks to see if cancer treatment is working in real-time. It can give results in just 24 hours, which could guide treatment decisions.

A new rapid blood test could confirm if a person has received a COVID-19 vaccine while they wait to board a plane or enter a sporting event.

A new blood test detects the bacteria that causes tuberculosis a year before infants develop the deadly lung disease, researchers report.

Worldwide, 1 in 4 people will suffer from a depressive episode in their lifetime. A new blood test may lead to a more personalized approach to treatment.