Today, you’ll learn about a new ink that can 3D print inside your body using soundwaves, why saying no to invitations isn’t as bad as you might think, and some new drugs that could potentially make your dog live longer.     3D Ink    “Soundwaves Harden 3D-Printed Treatments in Deep Tissues.” by Michaela Martinez. 2023.  “Dental curing light.” Wikipedia.  “Self-enhancing sono-inks enable deep-penetration acoustic volumetric printing.” by Xiao Kuang, et al. 2023.     RSVP No    “Just say no to that invitation.” n.a. 2023.  “Saying No: The Negative Ramifications From Invitation Declines Are Less Severe Than We Think.” By Julian Givi & Colleen P. Kirk. 2023.    Old Dogs    “Could a Drug Give Your Pet More Dog Years?” by Emily Anthes. 2023.  “Forget Botox. Anti-Aging Pills May Be Next.” by Andrew Pollack. 2023.  “We’re helping dogs like yours live longer.” Loyal website. N.d.  “Discovering the keys to a healthy lifespan.” Dog Aging Project website. 2023.   Follow Curiosity Daily on your favorite podcast app to get smarter with Calli and Nate — for free! Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers.  Hosted on Acast. See acast.com/privacy for more information.