I'll politely disagree with this.

We have moved to permanent DST some years ago, and in December and January I wake up and leave home at darkness. Also, since days are so short, I leave office at dark, too.

My body is strongly solar powered. I can't wake up, I can't get up to speed mentally, my brain and body can't work until it sees sunlight.

Body's circadian rhythm needs that light, and artificial replacements doesn't cut it, because it's not only light for my body, apparently.

This behavior is not dependent on my vitamin levels, either. My body is an avid consumer of B, and I take the whole family and then some as supplements. My energy levels visibly increase when I start to wake up with daylight, regardless of what I take.

While many people disagree with me, I'm in this body for more than 40 years now, and I believe I know at least a couple of things about how it works and behaves.

So yes, we should start respecting nature more. Optimizing for numbers doesn't cut it.