Not directly. I suppose if you get very stessed out over the MRI, that might cause a temporary reduction.
No asthma medicine will not reduce your sperm count anyway.
Heating the testes can reduce sperm.
No.
yes
Depends on the cause of the low sperm count
according to the primary cause
No, but it probably lowers "girl counts"
Coffee can reduce sperm count but only very slightly.
yes
No.
None the alcohol doesn't increase sperm but my reduce it
No.