A surprise. I picked it up at random because of the Cheeto on the cover, but it drew me in. He began by explaining that all food, processed or not, is made up of chemicals. The then showed that the issue isn't whether food has chemicals, but how much has been done to it. He then talks about the chemistry of preserving food. He looks at cigarettes and shows how the evidence that they are bad is overwhelming.

As for sunscreen, it isn't designed to prevent cancer. It's designed to prevent sunburn. That it does, if used correctly. But if it's used too much, the chemicals in it may cause as many problems as they prevent. So, use it occasionally when you know you're going to be out in the sun for a long time, but better yet, try not to be out in the sun for too long.

And as for Cheetos and other processed food. The tests are liable to many flaws—and he goes through all these. But in the end, even if the worst-case-scenario is true, eating a diet made up almost entirely of processed foods probably doesn''t shorten your life by much—maybe by 15 months (independent of other factors). So, knowing that, it makes sense to relax and not worry about it, while, at the same time, being aware of how much processed food you eat and maybe cutting back a little.

He ends with a chapter on the scientific study of the efficacy of prayer. End result, studies (admittedly flawed and subject to many variables) seem to show that those who are prayed for don't live any longer than those who aren't prayed for.While appearing to be unbiased, I get the impression he thought this outcome indicated something about the existence and nature of God, which, of course it doesn't if you have an understanding of the Age of Grace.