making full use of lunch time to study?

making full use of lunch time to study?
Time flies! So everybody treasure their time 。Of couse we must be。But is it right for us to study when we have lunch。Somenone say yes,but someone say no。
To make full ues of our time ,wo often see people looking their books when they have lunch。They lose themselves into the books。They are dragged by the stories。 so that ther even don't know what they are eating。But they are pleasure 。
On other's opions,it's a bad habbit to study at lunch-time。We have studied all the morning and we need to have a break。When having lunch ,we can enjoy the short time ,keep a pleasant stay for the afternoon's wok。。Meanwhile, studying at lunch-time does harm to our bodies。