Deficiency affects young and old alike.
Take a look at the quote below. It’s the first line of a research paper published in 2016 that tells you that high blood levels of a substance called homocysteine is a risk factor for two common types of dementia — a risk factor that is within your control.
“Moderately elevated plasma total homocysteine (tHcy) is a strong modifiable risk factor for vascular dementia and Alzheimer’s disease.” (Smith & Refsum 2016)
High homocysteine (Hcy) is an indication of low vitamin B12 status. It is also a risk factor for other serious diseases too, especially cardiovascular disease and stroke, as it can damage the walls of blood vessels. Hcy can easily be lowered. For some people, awareness of this fact could be life-changing.