Question: Why do the elderly unable to sleep soundly, whereas the young and strong can sleep easily and not easily woken up?
Answer: The medical scriptures say: Young people are full of qi, blood and have smooth meridian flow so they are full of energy during the day, and are able to sleep soundly at night. The qi and blood of the elderly have deteriorated, the meridian flow have also become stagnant, so the energy is not sufficient during the day, and also unable to sleep soundly at night.