American millionaire Bryan Johnson, 47, is known for his anti-ageing efforts through gene therapy and a strict daily routine involving a 4.30am wake-up, an 11am final meal, and an 8.30pm bedtime. But how would Johnson react when faced with the 58-year-old Chuando Tan, a Singaporean model who went viral for looking decades younger, without having to spend the millions Johnson has spent or to adopt an extreme lifestyle? Swipe to read what Johnson had to say https://cna.asia/4aeevJ6