It is true indeed, in this era of specialization, that we tend to look more and more with tunnel vision and sometimes neglect the fact there is more out there than our own area of expertise. This makes reactions from colleagues in other disciplines most interesting, like the suggestion of Breitenfeld that Bach might had suffered (mild) strokes,1 at least 1 in or before 1746 (the year Hausmann depicted Bach on a portrait), and one in July 1750, about 2 weeks for his death.
Zegers R. The Eyes, Brain, and Bones of Johann Sebastian Bach. Arch Ophthalmol. 2007;125(4):581. doi:10.1001/archopht.125.4.581