Taiwanese star Show Luo shared last month (Mar 28) that his mum has been battling Alzheimer's disease for the past few years.

The 45-year-old star explained that he initially had no intention of publicising his 66-year-old mum's condition. But in the past two to three years, some friends noted that "there was something strange with her but couldn't put their finger on it".

According to Show, people who had spoken to his mother for more than five minutes would find her repeating the same topic and asking the same questions.