Dr. Matthew Walker

meaning they reproduce only once.

This death is triggered by hormone changes from the optic gland, similar to mammalian pituitary glands.

And males die shortly after mating as well, usually within a few months.

That is wild.

Right.

Oh, okay.

So if I'm always going to bed at 9 p.m.

and I do that five days in a row, I'm regular timing, really?

When you say all of the lights, do you mean the little red light on my smoke alarm?

Yeah, so you get to basically do an A-B test.

On the regularity point, why?

What's going on in our brain that's making it, from a hormonal perspective or other perspective,

That's making it important for us to sleep at the same time.

What if I'm doing exercise?

I mean, is there any such thing as non-artificial light?

I mean, I guess with the sun, but I mean, is there a type of light that I could use at night, like candles or something, or...

So having a TV in your bedroom is a terrible idea then, because if...

On that behavioral point, if I'm getting in bed, but then I'm staying up for three hours watching Netflix, my brain is going to be quite confused about like the behavioral pattern of what I'm doing in my life.

It's not going to associate the bed with sleep.

It's going to associate the bed with movies.