Stool samples can help doctors diagnose some health conditions. Tips for collecting a stool sample include urinating before collecting the sample and using any tools that the sample kit provides.

Discover practical strategies for analyzing challenging biological samples, from low-input and degraded specimens to complex matrices.

People's bodies can be old or young for their chronological age, depending, in part, on the amount and types of stressors they have experienced. Scientists can estimate people's biological age, but ...

In a new article, researchers provide an overview of sample preparation techniques and information on routine sample types that may be encountered in forensic toxicology cases. As analytical ...

Molecular testing, or molecular diagnostics, refers to a group of tests that look at the genetic material in a specimen. It can detect genetic risk factors for certain diseases or provide evidence of ...