Dr. Samer Hattar

They just perform better.

They perform.

But the question is, is that intrinsic to the system or is that society?

Because society start things usually early or late.

That's a hard question to ask.

We discriminate against late risers.

In a way, we discriminate.

And I'm not so sure that the circadian system is that variable in the human population.

I mean, clearly there are maybe some genetic factors that make a small percentage of like everything with a bell shape.

But I think most of the time, the light environment may play a role.

And once, as we've talked about, this is a long-term effect of light.

Once you get into a rhythm,

It's hard to break out of that rhythm because if you start sleeping late and waking up late, you're not getting the morning sunlight.

And so you're just going to be late.

I mean, the best thing to do is to let the natural light creep in into darkness, right?

That would be the best.

But clearly that would be inefficient.

You want to go home, you want to read, you want to talk to your kids, you want to talk to your family.

So I think

it's nice to extend the day.