be in (one's) blood

To be innate, as of a skill or quality. All of my relatives are doctors—medical prowess is just in our blood.

Name	Pronounced	Usage
Anargyros	-	Greek
Hadiya	-	Arabic
Vortigern	VAWR-ti-gərn (English)	History
Lug	-	Irish Mythology
Aaron	AR-ən (English), ER-ən (English)	English, Jewish, Biblical, Biblical Latin, Biblical Greek
Baudouin	-	French