Even if your B12 levels are 'normal,' taking a supplement might help reduce dementia risk because lab tests can miss subtle deficiencies.

To counteract 'hyperbolic discounting' (shortchanging the future), when you get an invitation for months away, ask yourself if you would want to do it tomorrow; if not, say no.

Studies show that simple traffic light or letter-grade food labels don't work; the only thing that substantially reduces consumption is a black stop-sign warning label.

The idea of LDL being 'bad' and HDL being 'good' is too simple, as there are hundreds of types, with some HDLs being unhealthy and some LDLs being healthy.

For a person with diabetes, the health gain from controlling blood pressure and lipids is far greater than the health gain from controlling sugar.

After decades of consideration, Dr. Frieden concludes that salt kills more people than sugar, making it a more significant public health threat.

The biggest public health changes come from small changes affecting many people, but these face powerful, organized opposition from the few who face concentrated losses, like industry.

A single puff of a modern cigarette is designed to deliver more free nicotine to your brain, and faster, than an intravenous injection of nicotine.

One of the best life hacks is to simply switch to a potassium-enriched, low-sodium salt at home to reduce your risk of heart attack and stroke.