Timing is everything, and it also has a huge impact on your health. Now there’s a blood test to better understand your internal time clock and optimize it for better well-being. The TimeSignature test was developed by researchers at Northwestern Medicine scientists.
It requires two blood draws. It offers insights through gene expression markers into the time in your body compared to time in the external world. For instance, it may be 8 a.m., but your body may be operating as if it’s 6 a.m. Previously, determining a person’s internal clock could only be done by drawing blood multiple times over a specific span.
The test, which measures 40 different gene expression markers in the blood, can be performed any time of day, regardless of the patient’s circadian pattern or level of restfulness. The study was published in PNAS earlier this month.