The Toxicity of Aircraft Air

In a surprising study on the effect of significant weight loss by the Centers for Disease Control and Prevention, researchers found that overweight men and women of all weights who lost more than 15 percent of their maximum body weight had a higher risk of death.

But maybe weight loss is a marker for serious disease and not a cause.

This is the difference between intentional weight loss and unintentional weight loss. Read more...

What is the big deal about frequent flying? Sure, there is always the concern that a malcontent will try to explode his underpants, but there must be something more. Should I be worried about all the cosmic and ionizing radiation exposure at high altitude? Read more...