Every mystery leaves a trail of clues. Fingerprints, call logs, maybe some tire tracks… or, of course, DNA. And when it comes to mysteries about our health, there are no shortages of leads to chase.

This season, join host, Dr. –or Detective– Kaylee Byers and the Nice Genes! CSI unit as we investigate the genomic breadcrumbs shaping the way we age, treat diseases– and even watch TV. We’ll uncover how “poo water” can tip us off to pandemics before they spread, to why some of the fittest athletes suddenly collapse on the field. And if you thought you smelled a “rat,” well, you’d be correct. Because we'll also learn how our rodent sidekicks are helping us sniff out the world's deadliest infectious disease.

Explore these cases and more in Nice Genes! season 5: “DNA Detectives”– resolving the genetic riddles behind our health, one story at a time.