Animals respond to fearful situations

[Catherine]

Look at the time of day when I usually post.

We make sure we get some rest later though. Some people and animals are exposed to light all the time.
For people another problem is the lack of daytime sunshine. We lack normal dark and we lack normal light.
Birds living in the city have the same problem. Tall buildings keep them from getting proper light and the constant light keeps them from proper dark.

I think the irregular light situation must cause fear/stress responses. 
We need to do a  lot more study before we can be sure what is happening. One thing for sure is that the effects on us all are not good.