Mild Dehydration Could Mess Up Your Concentration

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iStock

Research has already shown us that enduring a heat wave without air conditioning can impair our mental performance. Now, a new paper reported by NPR shows that not drinking enough water in the summertime can have a similar impact. According to a meta-analysis published in July in the journal Medicine & Science in Sports & Exercise, even mild dehydration can negatively affect cognition.

Mindy Millard-Stafford, director of the Exercise Physiology Laboratory at Georgia Institute of Technology, looked at 33 studies dealing with dehydration. She found that subjects performed worse in a range of areas—including attention, motor coordination, and goal-oriented thinking—when they were slightly dehydrated compared to when they had consumed enough water that day.

She defined mild dehydration as fluid loss equivalent to about 2 percent of body mass. On a hot summer day, reaching this stage can happen surprisingly fast. If you're hiking in the heat, it might take you an hour to become mildly dehydrated, and if you're going on an intense run, it can take just 30 minutes to sweat out 2 percent of your mass.

That level of dehydration isn't too noticeable (you may just start to feel thirsty), but if you have to do something that requires your full attention, it makes a big difference. In one study published last year, female subjects who were 1 percent dehydrated made 12 percent more errors while playing a game that required them to think quickly. (That paper was funded by PepsiCo, which sells bottled-water brands like Aquafina and Propel, but the researchers designed the study independently, according to NPR.)

Luckily, the brain fog that comes with dehydration has a simple antidote: a glass of water. The biggest roadblock keeping you from staying hydrated may be your inability to recognize dehydration in the first place. To see if you're getting enough water, use this easy skin test throughout the day.

[h/t NPR]

These ASMR-Ready Headphones Promise to Lull You to Sleep

AcousticSheep
AcousticSheep

What do hushed whispers, gently tapping fingernails, and Bob Ross’s voice have in common? They’re all examples of triggers that may cause what’s known as an autonomous sensory meridian response (ASMR), or, as Dictionary.com succinctly explains it, a “calming, pleasurable feeling often accompanied by a tingling sensation” that can be triggered by soothing stimuli. ASMR has recently been recognized as an effective relaxation technique for those looking to calm their nerves; now, ASMR enthusiasts and novices alike can experience it in the form of a sleep-ready headband.

Upon first glance, SleepPhones: ASMR Edition may look like just a fabric headband, but the device actually features flat speakers tucked into soft, stretchy, eco-friendly material. Unlike regular headphones, SleepPhones can be worn comfortably to bed, even if you sleep on your side, and they come preloaded with content designed to help you relax. They feature eight hours of built-in ASMR content by 16 different ASMR artists (or ASMRtists), including but not limited to tracks with rhythmic tapping and "peaceful Italian whisperings."

A close-up of the SleepPhones speaker technology
AcousticSheep

The speaker components of SleepPhones
AcousticSheep

Using SleepPhones is designed to be a stress-free experience. The speakers have the ability to play for 20 ad-free hours with a mere three-hour charging time in between. There are also zero cords involved, meaning you won’t get all tangled up as you lie down or if you have a tendency to toss and turn at night. The small button located in the back of the headband allows you to start, pause, or skip tracks and control the volume.

For people looking for ways to relax beyond yoga and meditation, ASMR may be the way to go. One study observed that subjects watching ASMR videos not only reported feeling that aforementioned pleasant tingling, but were also found to have reduced heart rates.

You can get a pair of your own SleepPhones on Kickstarter with a pledge of $75 or more. They come in three different sizes with seven colors from which to choose.

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FDA Is Warning Against Fecal Transplants After Person Dies From E. Coli Infection

iStock/artisteer
iStock/artisteer

Though it may sound gross, the benefits of a fecal transplant—taking the feces of one person and introducing it into the gastrointestinal tract of another—are promising for those suffering from a Clostridioides difficile infection. The tenacious infections are often the result of sustained antibiotic use, which can kill the patient's "good" gut bacteria and allow C. difficile to proliferate. As the theory goes, the “good” bacteria in feces transplanted from a healthy person may restore the infected person's microbiome and alleviate symptoms like life-threatening diarrhea.

The treatment, which is not FDA-approved, is risky. The FDA has announced that two people involved in a clinical trial recently received fecal transplants that contained drug-resistant bacteria, with one of them dying as a result.

According to The New York Times, the FDA did not offer details of either case, relating only that both patients were immunocompromised, which is one of the contraindications of receiving the transplant. The stool they received was believed to contain antibiotic-resistant E. coli bacteria.

As a result, the FDA is suspending a number of fecal transplant clinical trials until it can be determined how stool is being tested for contamination with potentially deadly bacteria and why the E. coli was not detected. The stool that infected both patients came from the same donor.

Fecal transplants are considered an experimental treatment for C. difficile infection when first-line treatment like antibiotics are ineffective. The fecal transplant is usually introduced to the digestive tract via pills or an infusion.

[h/t The New York Times]

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