How are Cardio Risk Check and sleep related?

The Cardio Risk Check from MyBody-X is a polygenic risk score (PRS) for cardiovascular disease. Such scores aggregate many genetic variants with tiny individual effects, but they are not diagnostic – they do not predict whether you will definitely get heart disease. Their accuracy is strongly biased toward European populations; if you are not of European descent, the result is even less reliable. A high genetic risk score indicates a slightly elevated statistical risk, which can be substantially modified by lifestyle factors like diet, exercise, and sleep. Sleep is an independent risk factor for cardiovascular health: chronic poor sleep (e.g., less than 6 hours or fragmented sleep) can increase blood pressure, inflammation, and metabolic disturbances. However, the Cardio Risk Check does not measure sleep. Your smartwatch sleep score is a separate, non-clinical metric. The two are not directly linked. You should treat the genetic score as a hint, not a verdict, and consider sleep as a modifiable factor you can actively improve. Always discuss abnormal results with a doctor.