The 46-year-old actress has admitted she has faced several different kinds of addiction throughout her life, and says she once thought "everything could be fixed by sex" when she found herself addicted to the activity.
She said: "My sort of addictions jump. They jump around. When I was younger, I definitely think I had a sex addiction of some kind, yes, that everything could be fixed by sex. You know what I'm saying?"
The 'Girls Trip' star - who has son Jaden, 19, and daughter Willow, 17, with her husband Will Smith - also battled an alcohol addiction earlier in her life, and realised she had hit a "rock bottom" when she drank three bottles of wine whilst home alone.
She added: "I remember reaching a rock bottom that time I was in the house by myself and I had those two bottles of wine and was going for the third bottle. And I was like, 'Now hold up. You're in the this house by yourself going onto your third bottle of wine? You might have a problem'."