A recently released study has raised eyebrows in the medical community: long-term use of melatonin (3 - 10 mg in this study) was associated with a significantly increased risk of heart failure, hospitalizations, and even all-cause mortality in adults with chronic insomnia. While the study was observational (meaning it found an association, not causation), it’s still an important reminder of something I’ve seen repeatedly in my practice: melatonin is a hormone, not a vitamin,

Many of my patients know that I’m always looking for practical, evidence-based ways to reduce disease risk and extend healthy lifespan. One of the simplest tools for protecting your skin may already be sitting on the pharmacy shelf: vitamin B3 , also known as nicotinamide (or niacinamide ). A new study from Vanderbilt University Medical Center and the U.S. Veterans Affairs system looked at more than 33,000 veterans and found that those taking nicotinamide had a significantly