You're listening to Bulletproof Radio with Dave Asprey.

You're going to love listening to today's episode because it is with the preeminent pioneer

in the use of nicotine, not tobacco, but nicotine in a whole variety of age-related

and brain conditions, with more than 30 years of practice.

Today's cool fact of the day is that we are discovering that kids are even more sensitive

to light exposure than adults.

A new study just came out that showed that showing pre-school kids light in the evening

suppresses melatonin almost completely way more than it does in adults, which is a really

important thing to understand.

A new study built upon a 2015 study was looked at kids who were 9-16 and they found that

these kids were even more sensitive to it when they were younger.

The logic dictates that we don't have a study that says even young infants would probably

be most sensitive.

In the study, they used several different types of light.

They went from a dim amount of light, which is about 15 lux to a moderate, which is 150

lux, like a 60 watt bulb, although you have to 500 lux, like a bright, bright room.

They did show a dose response.

The dim light suppress melatonin about 9%, the moderate light, one light bulb, about

26%, and bright light was about 37% in the younger kids and less so in older kids, and

even brighter lights would do more than that.

The reason that this is a really cool and important fact of the day is that there are three things

that bright light does in kids and adults, but more in kids in the evening.

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