If you're a government agency like the CDC, the best time to admit to a huge mistake is on Friday afternoon before a three-day weekend. And if you're a government agency like the FDA, there's never a good time to make a boneheaded decision.

For a health issue, who doesn’t love a good screening test? Some love them, either assuring or sending them to find the underlying problem. Physicians have more of a love-hate relationship. But the quiet truth is that few screening tests for general populations, in terms of reducing mortality, are productive.

Innovation is built upon an ecosystem that takes decades to mature. Yet, China has already made substantial advances in computer science, chemistry, engineering, and robotics -- all of which pose a direct challenge to U.S. technological supremacy. However, the U.S. will remain dominant and largely unchallenged in biotech and medicine for the foreseeable future.

There is a naturally-occurring chemical called skatole. Its claim to fame is that it is named after, and smells like, fecal matter. It's "synthetic" but also "man-made" and there's a revolting distinction in this case. It's also an additive used in cigarettes and strawberry ice cream (??). Do your "duty" and read this article.

It is becoming increasingly apparent that men and women have significant differences in their physiology, and subsequent manifestation of disease phenotypes. At the same time, scientists increasingly view physiology as it changes, rather than as static points in time. Those trends come together in a new paper in JAMA Cardiology, which looks at the most ubiquitous of cardiovascular diseases: high blood pressure.

Dr. Jeffrey Singer takes issue with a Cincinnati Enquirer article touting a recent CDC report of a 30% drop in opioid prescriptions in 2016-17, compared to 2010-11. Our ACSH advisor maintains that the restriction of the drugs has no impact on their misuse, but does force pain patients to use ineffective and dangerous alternatives. In other words, prohibition.

According to the CDC, approximately 26 million Americans smoke tobacco daily. In comparison, 14.6 million smoke marijuana every day. In the headlong green rush for dollars -- it's, after all, a $7 billion market in the U.S. -- no one has been able to answer the question of whether all that pot smoking has any ill effects.

Rarely does a week go by without some rather strange stories emerging about science and medicine. This past week was no exception.

It's January, with an increase in gym memberships as people vow to get fit; but the fitness craze has its roots at least 100 years ago in Victorian Britain. Did HAL, the super-smart computer in 2001 - A Space Odyssey commit murder? Stories with a kernel of truth and a dash of obfuscation or misdirection make TRUTH somewhat negotiable even in textbooks. Finally, images that capture birds in flight by compressing time.

Author Steven Pinker's observation, that the world is less violent now than ever in human history, is probably true.