Actually, some of us do have to live with brain fog.
By omitting critical details from the article, you simplify the chronic issues many of us live with and imply that people can cure it by relying on lifestyles changes.
This may be the case for you. If your lifestyle or back pain alone is causing it, then sure, one would rationally believe you “don’t have to live with brain fog.” You can, as your title suggests,overcome brain fog.
I on the other hand have MS. My brain fog is caused by lesions in my brain. While your tips are commonly recommended to help manage and cope with brain fog, people who suffer from MS (more than half of people who have this disease) will never fully overcome brain fog. It is something we will live with for the rest of our lives (unless someone figures out how to reverse/heal our lesions). It doesn’t matter how rested I am, how calm, how well fed, there are things out of my control that cause my brain fog (e.g., menstruation, a cold, the last few days of my medication before I get my monthly infusion), because of the lesions in my brain. My only option during these times is to reschedule tasks that need my full cognitive ability.
While I am not an expert, I suspect that people who have brain fog as a symptom to an underlying health condition or disease also cannot “overcome” brain fog, such as those who suffer from depression or Lupus. They likely have to adjust their life to their reality, just as I do.
When we simplify a chronic issue, such a brain fog, in how-to overcome or cure articles, without limiting such statements to people who suffer from the same underlying cause as you, it suggests to the masses that living with our health conditions, like MS, is a choice. It suggests that all those who suffer from these issues must not be sleeping well, or eating right. It gives our employers ammunition to judge us or to argue that our cognitive issues are a result of our lifestyle and not that of a chronic underlying issue. It provides an opportunity for our friends and family to share the article with us, saying something along of “this guy overcame his brain fog, you can too.”
Your title should, in my opinion, read something more like “How to overcome brain fog caused by back pain” or “Could lifestyle changes help you manage brain fog?” And you should refrain from firm statements such as “You don’t have to live with brain fog” unless you limit the scope of your arguments.