This mouthguard will analyze spit to monitor health in the heat

By Aliya Barnwell Published July 14, 2015

Usually being told you have a smart mouth is a bad thing. Since the invention of the SMRT Mouth mouthguard, that’s no longer (necessarily) true.

Digital Trends has already taken a look at a mouthguard that takes a different angle on the protections most people are already familiar with by the analyzing impacts it protects from. SMRT Mouth takes a different route by reading the wearers saliva for signs of dehydration.

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You might think that’s not a very important metric, but 42 middle and high school students have died due to heat-related injuries since 1995, along with eight NFL players. In theory, these were all easily preventable tragedies. Former Pro-Bowler Mike Robinson of the San Francisco 49ers and Seattle Seahawks noted the benefits of the tech and signed on to be the company president.

SMRT Mouth’s electrochemical transducer tech can read antibodies, enzymes, and nucleic acids and use them as health biomarkers. The data is then sent to mobile devices locally, though there are plans for on-board storage. The projected battery life is about three hours, though the plan is to increase that as development continues.

SMRT Mouth Multi Layer — Image used with permission by copyright holder

The SMRT Mouth’s associated program will offer multiple logins, making it perfect for team management. It’ll allow users to organize and archive performance data for individuals or the whole team. The app is being developed for both iOS and Android.

This is all in the future at the moment, however. For now, SMRT Mouth is just getting started, but they do have some serious backers. Reggie Williams of the San Antonio Spurs signed on as an investor. The company has an exclusive partnership with Dr. Lee Gause, one of the foremost dentists in New York, and IceBerg Guards, the elite custom mouthguard company.

The company expects to launch the first iteration of the SMRT Mouth at the Consumer Electronics Show in January 2016.

Contributor

Aliya Tyus-Barnwell is a writer, cyclist and gamer with an interest in technology. Also a fantasy fan, she's had fiction…

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Health & Fitness

Ends tonight: Save 33% on the Nectar mattress for Prime Day 2023

A Nectar mattress sits on a bed frame in a bedroom.

If you're looking to buy a new mattress, Prime Day is the perfect time to do it, and there's no better company to go with than Nectar. Not only have they been around for a very long time, but they also have some interesting science and technology behind their mattresses, which is perfect for Digital Trends. While we've collected the best deals from Nectar's site, it's still worth exploring all their Prime Day deals using the button link below. Also, before we jump into the deals, we wanted to let you know that all prices are based on queen sizes, but they have everything up to split king if you want it.

What you should shop in this Nectar Prime Day mattress sale.
First, let's take a look at their memory foam mattresses, starting with the , the mattress that launched them into success and a great starter option for $699 rather than $1,049. Moving up from there is the , which is another memory foam mattress and has a phase-change cooling material in it to help if you tend to sleep hot, and is well-priced at $999, down from $1,499. The final memory foam mattress is the , which actually has copper infused into it, which helps draw heat away from your body and is another great mattress to help keep you cool at night. It's currently priced at $1,299 rather than $1,949 and is probably one of the better mattress deals you'll find today.

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The best health and fitness apps for iPhone in 2025: 15 best ones

Apple's Fitness app on the iPhone 14 Pro.

"Fitness" can mean a lot of things. For some people, it's being able to run far or fast. For others, it's being able to lift heavy things and lower them back down again. Others may simply want to keep trim or eat healthily. It may even mean getting a great night's sleep, or making sure your mental wellness is at its best. Whatever fitness means for you, we have a list of apps that cover all the possible bases. These apps excel in a number of different areas, but what they all generally have in common is that they use iOS' powerful tech to monitor and analyze your performance. As a result, they can help you progress along your fitness journey.

With 2025 now upon us, getting in shape -- and staying in shape -- is at the top of your list of New Year's resolutions. These apps will help you kick the new year off on a good foot and maintain your physical fitness for the rest of the year and every year after. You can pair the apps with other tech for best results, so make sure to check out our lists of the best fitness trackers and the best running headphones. Here are the best fitness apps for the iPhone in 2025.
Apple Fitness

Health & Fitness

GlassesUSA Black Friday Sale: Get 30% off prescription glasses

GlassesUSA frames close up with multiple styles.

Need a new pair of glasses? Want to stock up for your holiday trips before you head to meet up with your relatives? Typically, you'd have to wait until the official Black Friday event, the day after Thanksgiving, or maybe even Cyber Monday, but that's not the case this year. Alongside a variety of the best online glasses deals, GlassesUSA is hosting a huge Black Friday sale early, allowing you to save big on prescription glasses and frames with no waiting necessary. Of course, we always recommend browsing the sale of your own accord to see what's discounted because we couldn't possibly cover everything, nor could we know precisely what you're looking for. That said, we've called out quite a few of the best deals below.

What to shop in the early GlassesUSA Black Friday sale
Rightfully dubbed the Black Friday Early Bird sale, now's an excellent time to save up to 30% on prescription glasses. Moreover, GlassesUSA is truly dedicated to helping you find the perfect pair. Not only are there a ton of brands and styles to choose from, but you'll benefit from free shipping and returns and a money-back guarantee if you're not satisfied. You can even take to find the correct pair for your face. Ray-Ban, Oakley, DKNY, Prada, Ottoto, Muse, they are all here and available to shop, most discounted even. Men's and Women's eyewear are on sale, too, so there's something for everyone.