"Sport has literally changed my life. I'm here because of sport. It has given me a lot of confidence, a lot of courage, and a lot of discipline. It's helped me to be the person that I've grown to be today," Serena Williams said.
"When our children 'act out' or 'misbehave' or are 'being difficult' or are 'moody' or 'rebellious' or 'defiant' or whatever you want to call it, it really is them processing something they lack the skills to handle and talk about," the mother wrote on social media.
"I'm sure it's impacting me as a human being. I know it's made me more responsible in a certain way. I'm feeling a certain sensitivity in general that I don't think I had earlier in my head and heart and soul."
The findings of the study showed that infants who are exposed to alcohol in the womb, which passes from the mother's blood through the umbilical cord, could lead to increased levels of cortisol, a potentially harmful stress hormone.