Researchers use gut bacteria to map genetic mutations in colorectal cancer tumours

The older we get, our biological clocks tend to wind down. A Weizmann Institute research team has now revealed an intriguing new link between a group of metabolites whose levels drop as our cells age and the functioning of our circadian clocks – mechanisms encoded in our genes that keep time to cycles of day and night. Their results, which appeared in Cell Metabolism, suggest that the substance (called polyamides), which is found in many foods, could possibly help keep our internal timekeepers up to speed.