Paul A. Offit, MD, describes new research on a vaccine for shingles that could be a great step forward.

The benefits of reducing saturated fat intake have recently sparked controversy. Experts review the scientific evidence.

Dr David Johnson explains why he does not share the news media's concern about proton pump inhibitors and cardiovascular risk.

Dr Peter Yellowlees comments on a large study investigating the prevalence of PTSD in patients who spent time in the ICU.

Dr Yellowlees discusses findings of a Cochrane Review that checks the value of the Mini-Mental State Examination for predicting which patients will advance to dementia.

Selma Mohammed and Victor Montori explore the merits of shared decision making and highlight a tool to facilitate the discussion on whether to take a statin for primary prevention.

When the Antibiotic Resistance National Action Plan was announced, our readers had many concerns and questions. We asked CDC Director Tom Frieden for answers.

Why is most published research false? Dr Lundberg talks about conventional wisdom, medical dogma, publication bias, and how to fix this mess.

Occult magnesium deficiency may be responsible for innumerable ailments, but plasma and serum levels are unreliable measures. Dr Lundberg offers his advice for addressing this important problem.

A review of 30 RCTs reveals which nonpharmacologic interventions are and are not effective in reducing agitation.