Opioid prohibition spares no one, but the elderly are especially vulnerable. If they're in pain, chances are that they will be sent out of their physician's office with nothing more than Tylenol, which is just about useless. It almost happened to my mother. Yours may not be so fortunate.

Andrew Kolodny's lack of knowledge of pharmacology is legendary. His chemistry must be far worse. Should I be flattered when he appears to be copying mine? "Imitation is the best form of flattery." Charles Caleb Colton, 1824 ... "Except when it makes me want to puke." Josh Bloom, 2019

Changing the world is hard work. Marching and protesting is easy, but learning about science and taking meaningful action -- like planting a trillion trees -- requires substantial intellectual and physical effort. No wonder so few are willing to do it.

Dietary science is shaky on a good day. When you throw in new and/or trendy terms, like microbiota, vegan, and plant-based, it becomes even shakier. Angela Dowden tries to digest (sorry) a new study that looks at weight loss, diabetes, vegan diets and gut microbiota. The results may surprise you.

A new study looks at how eating habits are passed along generation to generation, and species to species. Humans are the rare exception, eating from both the meat and plant side of the buffet.

The rest of the world has not been out snoozing in the sun. But Americans have had access only to older generations of sunscreens that prevent sunburn — but not the deeper damage that can cause skin cancer.

Teenagers are rebellious and they do stupid things. Given the range of options available to them -- from drinking and driving to unprotected sex -- vaping is a rather mild vice. However, it is still harmful, so laws need to be in place to prevent teens from getting them.

When there is little if any money to be made curing a disease, non-profits could come to the rescue.

Have the internet and social media created a climate where Americans believe anything is possible? With headlines citing now as the age of conspiracy, is it really true? In a word, no.

Some people believe that putting collagen in your coffee will bring good health, but collagen in coffee does nothing good for you.