be in someone's blood
US /bi ɪn ˈsʌm.wʌnz blʌd/
UK /bi ɪn ˈsʌm.wʌnz blʌd/

1.
estar en la sangre de alguien, ser innato
if an ability or quality is in someone's blood, they have it naturally, often because other members of their family also have it
:
•
Music really seems to be in his blood; his whole family are musicians.
La música realmente parece estar en su sangre; toda su familia son músicos.
•
She's a natural leader; it must be in her blood.
Es una líder nata; debe estar en su sangre.