Black people in particular are at super high risk for high-blood pressure, heart disease, sickle cell anemia, ect. Basically anything related to the blood or the heart, they are at risk.
Even if you aren't black, a physical is never a bad idea. A regular physical is highly reccomended to anyone over the age of 40 with familial history of heart disease, earlier if you have something like a heart murmor or similar heart defect. I'm only 32, I've had 3 already.