How to Track Sleep: Apple Watch Edition


Tracking your sleep can be an effective way to understand the links between lifestyle and health.

A month ago, I published an article and video on sleep tracking for Android Wear (now Wear OS by Google). This is the Apple Watch counterpart.

Apple’s superior app ecosystem extends to tracking sleep. There are multiple solid choices for sleep tracking using solely your iPhone or with your iPhone paired to an Apple Watch.

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The First Self-Driving Car Fatality


Today, a self-driving car caused the first fatality. It won’t be the last.

But let’s put things in perspective: In 2016, 37,461 people died on U.S. roads. That’s 102 deaths per day.

It’s hard to say whether a human driver or a computer is safer at this point. The best measure would be fatalities per vehicle miles traveled (VMT).

There were 1.18 deaths per 100 million VMT in 2016.

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R9: More Important than CRI?


Like flicker, color is a widely-debated and often misunderstood topic among the lighting industry. In the past few years, we have seen the following changes regarding color:

  • TM-30-15, a new color metric from the Illuminating Engineering Society
  • California Title 24’s minimum 90 CRI requirement for residential buildings
  • A minimum R9 of 50 as an optimization for the WELL Building Standard and a requirement for residential lighting under Title 24

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The End of Flicker


If it’s not visible, it’s not a problem, right? Non-visible flicker is a common byproduct of LED circuit designs, and it can be hazardous to health, safety, and work performance.

Lighting manufacturers should be aware of some upcoming standards changes—including from the DLC—that could impact their ability to sell products with flicker in the near future.

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Everything Lighting OEMs Need to Know About the WELL Building Standard


The WELL Building Standard was launched in late 2014 with the goal of prioritizing the health and wellness of building occupants. It is most easily described as LEED for healthy buildings.

Like LEED, WELL operates on a scoring system in multiple categories, including air, water, and light. Some features are preconditions for certification, while others are optimizations. Depending on the number of features that pass, a project can be certified as WELL Silver, Gold, or Platinum.

WELL is quickly becoming an unstoppable force. In summer 2017, just 2.5 years after launch, there were 100 million square feet of projects completed or in progress worldwide. As interest has grown in healthy environments, the next 100 million will undoubtedly come even more quickly.

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