Now Playing: Tips for maintaining a healthy diet

Now Playing: Could the trendy alternate-day fasting diet be putting you in danger?

Now Playing: Cornell University gives exclusive look at how it has contained COVID-19

Now Playing: Ayesha Curry shares her pasta bake recipe

Now Playing: How 1 program in Seattle brings farm-fresh food to those in need

Now Playing: Lady Gaga and her mom team up to teach kids about kindness in new book

Now Playing: Dwyane Wade and Gabrielle Union honored in TIME100

Now Playing: Carole Baskin opens up about her 1st week on 'DWTS'

Now Playing: Deion Sanders shares why he chose to coach at an HBCU

Now Playing: Tiffany Haddish joins Nicholas Cage film ‘The Unbearable Weight of Massive Talent’

Now Playing: Cruise line's extraordinary measures to set sail again

Now Playing: Ellen DeGeneres returns to show after major fallout

Now Playing: Michael Jordan becomes 1st Black NASCAR team owner in nearly 50 years

Now Playing: State of Emergency called ahead of expected Breonna Taylor decision

Now Playing: CDC under fire after walking back guidance on how virus spreads

Now Playing: Tropical Storm Beta makes landfall overnight in Texas

Now Playing: Tracking the storm's new path and forecast

Now Playing: Supreme Court showdown to fill Justice Ginsburg's seat

Now Playing: This easy ‘10-Can Chili’ is the perfect fall recipe