At the bottom of the ocean, bacteria that are thermophilic and can survive at the steam vent heat that would otherwise produce, if fish were there, sous-vide cooked fish, nevertheless, have managed to make that a hospitable environment for them.

The flu is very unpredictable when it begins and in how it takes off.

We've gone from a preponderance of acute and infectious disease as a source of premature death to chronic diseases, which are the preponderance of the burden of illness in most of the world. That puts a much higher premium on the prevention of chronic disease than ever in history.

Are we at some kind of evolutionary equipoise as a species? Or, are we destined to become something different - something, perhaps, even better adapted to the environment?

Keep in mind that there are many neurotoxins in the world. Dozens of natural and industrial substances have neurotoxic properties.

Autism is a complicated illness, and children with a variety of treatments and non-treatments show improvement over time, which is all to the good.