No, I don't have any trouble reading (I'm 42). I think your comment about "squeezed for time" probably explains it. You're probably slightly stressed or burned

No, I don't have any trouble reading (I'm 42). I think your comment about "squeezed for time" probably explains it. You're probably slightly stressed or burned out through working too long hours. All the evidence suggests that working too many hours is detrimental to productivity, and your inability to focus seems to be proof that your productivity is suffering. Try relaxing more and reducing your working hours.