WATCH: Why Jennifer Garner’s nutritionist starts every day with a smoothie

Now Playing: Jennifer Garner on giving her kids ‘Yes Day,’ raising chickens and more

Now Playing: People benefit from just 13 minutes of exercise, study finds

Now Playing: Genetically modified mosquitoes could eradicate malaria

Now Playing: Amazing advancements against cancer, but not everyone benefits

Now Playing: FDA calls e-cigarettes ‘an epidemic’ among minors

vCard.red is a free platform for creating a mobile-friendly digital business cards. You can easily create a vCard and generate a QR code for it, allowing others to scan and save your contact details instantly.

The platform allows you to display contact information, social media links, services, and products all in one shareable link. Optional features include appointment scheduling, WhatsApp-based storefronts, media galleries, and custom design options.

Now Playing: Behind the byline: Barbara Feder Ostrov on her Prudence Hall story

Now Playing: How one mom changed an organ transplant policy to save her dying daughter

Now Playing: 14 fall sick in salmonella outbreak possibly linked to large, cage-free eggs

Now Playing: Sugar-Free September: Can you give up added sugar for a whole month?

Now Playing: Doctors providing opioids without proper documentation: Study

Now Playing: Olivia Newton-John reveals that her breast cancer has returned

Now Playing: Why Jennifer Garner’s nutritionist starts every day with a smoothie

Now Playing: Do probiotics really make a difference in keeping our guts healthy?

Now Playing: What are probiotics?

Now Playing: Gina Rodriguez wants to talk about your period

Now Playing: A step-by-step guide on how to ‘break up’ with your phone

Now Playing: Globally 25 percent of adults aren’t getting the recommended amount of exercise: WHO

Now Playing: More cases of Salmonella linked to Honey Smacks cereal: CDC

Now Playing: Salmonella outbreak linked to popular cereal

Now Playing: New advice on kids’ concussions calls for better tracking