As a matter of fact when working over 8 hours it is illegal for a worker to not have a full none working break for one hour.
Next, when we asked about the ideal vs the reality of lunch breaks, people who were not able to take a sufficient lunch break said their ideal lunch break averaged 63.1 minutes. In reality, however, it was 44.3 minutes, resulting in a gap of around 20 minutes.
Personally I thought that most of the workers in Japan are suffering to this problem. They are not taking enough breaks and forcing themself to work though them. Japan has a law which is to, 1 give a break during working hours, 2 give all employees, 3 for the worker to be able to take a break at the time at their own will (not including waiting time during shifts). It is the firm that has to make the change, and the laws need to be more stricter for the workers to have less stressful shifts. 
When you wrote the following:
返信削除"Next, when we asked about the ideal vs the reality of lunch breaks, people who were not able to take a sufficient lunch break said their ideal lunch break averaged 63.1 minutes."
...Who did you mean by "we"? You and who else? You did this survey and conducted that research?
It must be difficult for students to transition into an office working environment. In my classes (including ours), students randomly get up and leave the classroom without saying anything, and sometimes don't return for 10 or 15 minutes. That may be a lot more difficult in a working context. Imagine if your teachers did that!