When Serena Williams was pregnant in 2017, she won the Australian Open, and you can bet her heart was filled with joy -- and healthy. That promises good things for her daughter, Alexis Olympia Ohanian Jr. According to a new study in JAMA Network, mom’s heart health while pregnant has a lot to do with her child’s heart health during ages 10 to 14.
The researchers looked at 2,300 future moms’ body ma…