A tiny sensor on your tooth could help keep you healthy

Wireless sensors are ubiquitous, providing a steady stream of information on anything from our physical activity to changes occurring in the world’s oceans. Now, scientists have developed a tiny form of the data-gathering tool, designed for an area that has so far escaped its reach: our teeth. Read more.

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Enough with the toxic hair dyes. We could use graphene instead

Most permanent hair dyes use toxic chemicals to bring about a change in color, oftentimes damaging hair in the process. And the darker the desired mane, the more chemicals needed.

To find a better way to make your blond locks black, scientists turned to graphene, a material composed of a single layer of carbon atoms that’s used in electronic devices and a variety of medical applications. Read more.

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America’s Binge-Drinking Problem Is Even Worse Than We Thought

Many of us enjoy the odd glass of wine or beer, but every once in a while we like to throw down and get completely wasted. But for many Americans, these binge-drinking sessions aren’t as “every once in a while” as we’d like to believe. New research shows that nearly 20 percent of all US adults participate in binge-drinking—and when they do, they go hard. Read more.

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How to Relax When You Can’t Take a Vacation

Americans need to start figuring out how to relax when they can’t take a vacation. We live in the only advanced economy that doesn’t guarantee its workers paid vacation. About one in four Americans receives neither paid vacations or holidays, and those of us that do average only ten days of paid vacation and six paid holidays a year. For a comparison, workers in the European Union receive at least 20 days of paid vacation per year. More read.

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Hearts Get ‘Younger,’ Even At Middle Age, With Exercise

Eventually it happens to everyone. As we age, even if we’re healthy, the heart becomes less flexible, more stiff and just isn’t as efficient in processing oxygen as it used to be. In most people the first signs show up in the 50s or early 60s. And among people who don’t exercise, the underlying changes can start even sooner. Read more.

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Circadian Clock Monitors Temperature While the Body Sleeps

While you sleep, your brain’s circadian clock may be constantly monitoring changes in external temperature and incorporating that information into the neural network that controls sleep. These were the findings suggested in a study published in Nature and supported by the National Institute of Neurological Disorders and Stroke (NINDS), a branch of the NIH. Read more

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5 Sleep-Habit Tweaks To Help You Adjust To Daylight Savings Time

When your clocks jump forward, you’ll lose a full hour of sleep and wind up with a 23-hour day. The shift may seem pretty insignificant, but it affects your daily circadian rhythms and hormone cycles for roughly a week, creating a feeling of lethargy, potentially worsening your sleep and lowering your immune function.

Research suggests that the seasonal “jump forward” into Daylight Savings Time typically leads to two main problems:

  1. increased sleep latency (difficulty falling asleep)
  2. increased sleep fragmentation (trouble staying asleep and achieving deep sleep) for up to a week after the transition Read more

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