Well, of course. A war could just mean conflict, and you don't need weapons for some conflicts. For example, internal conflicts happen to you on a day to day basis when you need to make decisions. Your mind is constantly at war with itself, trying to figure out the best, and most advantageous option.
The reason I agree is because people face challenges everyday. Those challenges can have different affects on people. There are also people who suffer with depression, anxiety, bipolar, and other mental illness. And for them everyday is a fight to live.
