Less quality sleep, dehydration, restricted movement, and an inability to do anything constructive about the situation are part of the problem. (inc.com)
One of the most annoying aspects of the film is the way that the characters frequently talk over each other without adding anything constructive to the plot or a particular conversation. (rottentomatoes.com)
Take a look at the chart below and you'll see that it was hard to find anything constructive to say. (theirrelevantinvestor.com)