Question

A person sleeping under a tree during night feels lethargic when he wakes up in the morning. What could be the possible reason?

Answer 1

Plants opt for respiration during night due to which they give out lot of carbon dioxide during that time. A person sleeping under trees during night inhales more carbon dioxide and deprives his body of oxygen. This leads to less energy production and thus the person feels lethargic after he wakes up in the morning.