According to the data from the Food and Health Bureau and the Hong Kong Hospital Authority, it is estimated that for people aged 65 or above, there is a worrying 5-8% chance of getting dementia and the prevalence of dementia doubles with every 5-year increment after age 65. Due to the irreversible nature of dementia and the heavy dependence on support services, the cost of care and the burden on caregivers will keep growing with an ageing population and increase of dementia cases.
Moreover, despite the improved cancer survival rate due to advancements in medical technology, cancer recurrence rate is still high, for example, colorectal and ovarian cancer recurrence rate can reach as high as 50% and 80% respectively2.