A New Jersey woman is alive because her Apple Watch alerted her to an elevated heart rate. It turned out she had fluid around her heart from a viral infection. Medical alert systems have been around for some time. Often, they're wearable devices that can detect when you fall, and alert emergency personnel if it senses you aren't responding. But what happens if you aren't wearing a device, or if you aren't experiencing any triggering signs or symptoms of a medical emergency at all?

This robot vacuum will make you feel smarter and keep your home cleaner. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. However, our picks and opinions are independent from USA Today's newsroom and any business incentives. Nothing revs my bargain-hunter engine quite like a good robot vacuum deal, and I chances upon one I am so excited to tell you about. One of the best robot vacuums we've tested in our labs is on sale at Massdrop right now and it's a doozy of a deal.

Uber has filed for a patent for artificial intelligence technology that knows when passengers are drunk. A link has been sent to your friend's email address. A link has been posted to your Facebook feed. Uber has filed for a patent for artificial intelligence technology that knows when passengers are drunk.

The new Apple HomePod is displayed at an Apple Store on Feb. 9, 2018 in San Francisco. NEW YORK -- "Hey Siri, play jazz in the living room, hip-hop in the kitchen." Apple's HomePod speaker is getting a little bit smarter today, through a software update that arrives via iOS 11. Smarter, that is, when it comes to playing music. For starters, you now have the ability to "pair" two HomePods for a full stereo effect, with the left and right speakers playing the left and right audio channels accordingly, and independently adjusting to where you place them.

John Oliver addressed bitcoin and the crypto-craze on Last Week Tonight yesterday evening, describing the phenomenon as, "Everything you don't understand about money combined with everything you don't understand about computers." The British comedian satirised consumers' rush to enter the digicoin market without fully understanding how it works or what much of its accompanying jargon actually means. "The vast majority of people buying these coins are not paying much attention to the details of the startups they are attached to, they are responding to the huge fervour," Oliver observed. "Many people are buying coins for no reason other than other people are buying them." Elsewhere in an extensive 25-minute address, Oliver sent up the "cult-like devotion" with which investors follow sub-Reddits and YouTubers preaching the bitcoin gospel.

The Bose AR glasses are still a prototype. Hey Bose glasses, tell me what it is I'm looking at. Smart glasses based on augmented reality typically work by floating a visual layer of information related to your surroundings that only you as the person wearing those spectacles are able to see. The AR glasses that Bose is showing off as a working prototype at SXSW in Austin, which kicks off this weekend, doesn't change what you're seeing--there's no actual display inside. Instead by determining your location (via GPS on your nearby iOS or Android phone) and tracking the way your head is turned, the glasses promise to tell you all about what it is you're seeing.

The Gentex rearview mirror scanner, scanning an iris. Toyota took the wraps off a new self-driving transportation concept at CES, and it can be anything from a pizza delivery van to a camper for your next vacation. Everyone's working on self-driving cars, or cars that read your emotions, scan your brainwaves, heck, we've even see a flying car. Sure, some of it's far-fetched -- and autonomous cars are still a few years out from getting any kind of go-ahead for mainstream drivers -- but a lot of this new car tech is closer than you think. BMW, Ford, and Hyundai already have Alexa voice integration, and Toyota announced this week that Alexa integration is coming out in some of its new Toyota and Lexus cars, too.

Jennifer Jolly's coolest gadgets from CES you'll actually see in your home this year. A New Year means one thing in the world of gadgets -- a trip to Las Vegas for CES. It's the enormous consumer electronics show packed with nearly 50-football fields worth of shiny new tech toys. Somewhere inside the cavernous convention center crowded with TV's we can't afford, concept cars we'll never drive, and stupid "smart" things we'll never use (Alexa-enabled toilet…really?), there's always a handful of gadgets that really can hit the jackpot of product-perfection. That's what I set out to find early-on here in Las Vegas. Here are my favorites so far.

Toyota and Mazda will build a $1.6 billion U.S. assembly plant, adding up to 4,000 new jobs. Toyota will be highlighting an array of experimental technologies aimed at improving safety and anticipating drivers' desires at the Tokyo Motor Show later this month. Toyota Motor Corp. manager Makoto Okabe told reporters Monday that the use of artificial intelligence means cars may get to know drivers as human beings by analyzing their facial expressions, driving habits and social media use. Such a vehicle might adjust drivers' seats to calm them when they're feeling anxious or jiggle them to make them more alert when they seem sleepy. It might also suggest a stop at a noodle joint along the way.

The Amazon Echo Show is on sale for the first time ever (Photo: Reviewed.com) If you make a purchase by clicking one of our links, we may earn a small share of the revenue. However, our picks and opinions are independent from USA TODAY's newsroom and any business incentives. The entire Amazon Echo lineup is fantastic, but the Echo Show offers the most diverse array of features--and right now it's $30 off. This is the first time ever that Amazon has discounted the price of this device.