You're probably asking yourself, “So how does this affect my business?” Which is a valid question. The answer centers on what impacts our circadian rhythms. There are a number of cues that keep our body on track like alarm clocks and eating schedules, but lighting is by far the strongest trigger. In the primitive sense, it was the easiest way to dictate when humans could (and should) be active.
As society evolved, the proliferation of artificial light has given us the ability to work around the clock. Unfortunately, our internal clocks are still set to the same schedule that has guided us for thousands of years.
Constant light has not only disrupted our natural circadian rhythms, there’s also a surplus of evidence that suggests different types of light can disrupt our natural sleep-wake cycles, our ability to focus, and cause irritability or even depression.
Blue light for example, the most common form of light emitted from phones and tablets, has been linked to negatively affecting our ability to fall asleep at night. A study at the Harvard Medical School found that blue wavelengths suppressed melatonin levels at least twice as long as any other form of light.