Caffeine is not addictive. Regular users of caffeine can develop tolerance and mild physical dependence, and sudden withdrawal can cause headaches and other symptoms (but only in half the population). This is does not qualify as addiction.
An ad for Apeaz in Discover Magazine is misleading. Its active ingredient may provide some temporary relief of pain, but the claims in the ad are overblown. It is not a new blockbuster drug or an anesthetic.
There is an opioid epidemic, with increasing overdose deaths from both prescription drugs and illegal drugs. Just how addictive are opioids? It appears they are safe when used appropriately, but there is a high risk of abuse, and they are deadly when misused, especially OxyContin.
Cognitive Errors and Diagnostic Mistakes is a superb new guide to critical thinking in medicine written by Jonathan Howard. It explains how our psychological foibles regularly bias and betray us, leading to diagnostic mistakes. Learning critical thinking skills is essential but difficult. Every known cognitive error is illustrated with memorable patient stories.
Osteoporosis is routinely treated with bisphosphonates to prevent fractures. A new study suggests that osteopenia should be treated too. But questions remain.
A sequence of positional changes sounds like voodoo, but is actually an effective way to cure benign paroxysmal positional vertigo (BPPV).