Can dim light make us…dim?

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ISLAMABAD, February 13(TNS):  Dusk, moonlight, a cozy fireplace light undoubtedly, all of these evoke a romantic mood, but according to a new study, there’s more to dim light than meets the eye. Turns out, there might be an additional reason why a dim-lit setting leads us to make (sometimes poor) romantic decisions.

We’ve all been there at some point: you’re on a date in a dimly lit, cozy little restaurant.

It’s going reasonably well, and the person you’re with is half decent. However, maybe they’re not as attractive as you’d like, or perhaps they’re kind of rude to the waiter, or maybe they make weird chewing noises. Either way, you decide they’re not the right person for you.

Buuut, as you’re there, you might as well relax and try to enjoy the evening. You have a glass of wine, maybe two, one thing leads to another and let’s just say…the evening ends wildly differently from what you initially intended.

The next morning, as you watch your…unforeseen and premature partner sleeping, you begin to wonder, “What on earth were you thinking? What led to this…poor romantic choice? Was it the wine? Was it the atmosphere? Could it have been…the light?!”

According to a new study, yes, it could very well have been the light (although in our little scenario, the wine probably didn’t help either). Sure, a dim and romantic light makes us all look a little more attractive than we do in the cruel light of day, but — the new research seems to suggest — when you chose to go home with that person, you may have been…cognitively impaired.

Researchers at Michigan State University in East Lansing tested the cognitive abilities of a type of rat that sleeps at night and is awake during the day — just like humans are.

The scientists exposed the rodents to dim light and bright light for a period of 4 weeks. Their new findings — published in the journal Hippocampus — may make you think twice before you light up that candle.

Dim light leads to cognitive impairment

The rats that had been exposed to dim light performed poorly on spatial learning tasks and showed a 30 percent decrease in their hippocampi, which is a brain area that is key to learning and forming new memories.

Also, the same rodents showed decreased levels of a brain peptide that normally helps neurons to communicate with one another in the hippocampus. The peptide, which is called a brain-derived neurotrophic factor, contributes to keeping healthy connections between neurons.