WATCH: Romaine lettuce from California linked to E. coli, FDA says

Now Playing: Romaine lettuce from California linked to E. coli, FDA says

Now Playing: How to use fats and oils for healthy hair, skin

Now Playing: New cancer treatment credited for saving the life of 9-year-old boy

Now Playing: American professor investigated for involvement in genetically edited babies

Now Playing: What is ‘bloating’?

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: Chinese researcher claims to have made 1st genetically edited babies

Now Playing: Refocus on health after the indulgent Thanksgiving meal

Now Playing: ALS researcher living with the disease still fighting for a cure

Now Playing: Imagining your fears can help you conquer them

Now Playing: Maryland college student dies of adenovirus

Now Playing: Long lines as Massachusetts opens first 2 dispensaries on East Coast

Now Playing: CDC warns against eating romaine lettuce after E. Coli outbreak

Now Playing: Toys have toxic chemicals, spying capabilities: WISPIRG survey

Now Playing: Massachusetts opens first recreational pot stores

Now Playing: What is diabetes?

Now Playing: What to know about new experimental drug for peanut allergies

Now Playing: Jessie J shares new details about her infertility struggle

Now Playing: 91,000 pounds of ground turkey recalled due to possible Salmonella

Now Playing: Top tips for Thanksgiving food safety

Now Playing: Juul to temporarily stop selling most flavored nicotine in stores