On average, individuals diagnosed with Alzheimer's disease have a life expectancy ranging from three to 11 years, although some may live beyond 20 years. The level of impairment at the time of diagnosis significantly influences survival times.

For those affected by Huntington's disease, the progression is gradual but inevitable, with life expectancy generally ranging from 10 to 30 years after diagnosis. In contrast, juvenile Huntington's disease typically results in death within 10 years of symptom onset.

Meta-analyses indicate that PTSD is associated with a 47% increase in mortality risk, according to six studies that reported odds ratios (OR) or relative risks (RR), and a 32% increase in mortality risk in 18 studies that focused on the time until death, compared to individuals without PTSD.

The breadth of research goes beyond the primary focus of VitaDAO. Notably, it is documented that every dollar invested in prevention saves at least four times that amount in future treatment costs.