As people age, their immune system function declines. T cell populations become smaller and can't react to pathogens as ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.

Functional genomics uses genomic data to study gene and protein expression and function on a global scale (genome-wide or system-wide), focusing on gene transcription, translation and protein-protein ...

Functional magnetic resonance imaging is a non-invasive method for measuring brain activity. It uses magnetic resonance imaging to map blood oxygenation levels in the brain and estimate changes in ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Cierra Murry is an expert in banking, credit cards, investing, loans, mortgages, and real ...