You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

Revised guidelines for drug-testing hair scheduled for publishing next year. (Photo: Jim Allen/FreightWaves) WASHINGTON — The U.S. Department of Health and Human Services has again pushed back its ...

The trucking industry’s decade-long push for hair follicle drug testing is reaching a critical inflection point as the Trump administration prepares to address guidelines that have been delayed ...

New research validates a study that almost 300,000 truck drivers would fail a hair test for drug use today, according to The Alliance for Driver Safety and Security, which did the original study and ...

Hair analysis could be the key to understanding adolescent drug usage, as a new study uncovers almost double the number of children were found to be using substances than those who admitted to in a US ...

Es Càrritx is often called a “cult cave” — so named because, approximately 3,600 years ago, it was host to various ritual activities. Now, a new analysis of hair samples from an island cave off the ...