Welcome to Discovery, your guide to the immense (and scientific) wonders of the world. This week, a new way to experience the Titanic, a strange syndrome linked to cannabis, and the (very real) history of dire wolves.

But first: How the shingles vaccine could reduce your risk for dementia.  

PHOTOGRAPH BY JAMES CAVALLINI, SCIENCE PHOTO LIBRARY

Shingles can be incredibly painful. It presents as a viral rash when the varicella-zoster virus, which is responsible for chickenpox, gets reactivated in the body. Vaccination can help prevent the infection, but new research is showing the vaccine may have another benefit: protecting against the development of dementia.

More stories for your brain:
— This blood test could speed up Alzheimer’s diagnoses. Will it lead to better treatments?
— ‘Brain food’ is real. Here’s what to eat to keep it healthy and strong. 

SATELLITE IMAGE BY STEVEN D. MILLER/CIRA/CSU AND NOAA/NESDIS

IMAGE BY MAGELLAN LIMITED/ ATLANTIC PRODUCTIONS

Fresh advances in 3D scanning technology are making it possible to explore some of the hardest-to-reach and most fragile sites on Earth. Now, thanks to 715,000 photos and millions of laser scans, a digital twin of the Titanic is ready for you to see—without having to dive underwater.

More Titanic stories: 
— He found the Titanic, but for Robert Ballard the search never ends
— The Titanic was always doomed. Here’s why.  

ONE LAST THING: This tribe chooses to live in isolation—but the world (and certain YouTubers) can’t seem to leave them alone.

Today’s newsletter was edited and curated by Jennifer Baik and produced by Amanda Williams-Bryant. Thanks for reading!