The results of a 10-year study looking at the health effects of coffee on more than 3,000 people were published in the European Journal of Clinical Nutrition. The research indicates that drinking only a cup and a half of coffee per day lowers the incidence of diabetes by more than half, compared to abstainers.

If coffee were an approved drug, it would be a blockbuster.

It’s an entirely natural product that has been used by humans for centuries. The warning labels California mandates for marijuana warn against giving the plant to pets, but they say nothing about the cancer risks associated with smoking the plant.

I admit that I find this entire matter depressing. I’m not exaggerating when I say that, statistically speaking, millions of people will die prematurely if enough of them take these authoritarian labels seriously.

How can anybody not be depressed by this sort of scientific obliviousness and government overreach?

So I poured myself another cup of coffee this morning. Fortunately, there’s evidence that moderate levels of coffee reduce depression as well.

I have two bits of advice. First, drink coffee regardless of California’s warning labels — but not so much that it interferes with your sleep. Sleep disorders are a risk factor for depression and many other diseases.

How much coffee is optimal depends greatly on your genome. The technology that could quickly determine how much java you should be drinking exists now, but it’s not yet on the market.

My other advice is to assume that all government science is junk science until proven otherwise.

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Candid interviews with four world-renowned experts show why it’s imperative for our economic survival to prolong healthy lifespans — and the medical “singularity” that is just around the corner.