Some perforated screening or other sheet metals would work also.
Some people have more money than time.
IF the paint worked, in an existing room, it may be less expensive to use the paint than to remove drywall, apply shielding, reapply drywall, and paint.
Could screw up digestive pH and hence nutrient intake, making one crave more food.
saved!
>Humans are not sensitive to low power EMF.
Highly dubious claim.
Most mobile phone EULAs and warnings specify a minimum safe distance from skull for use.
Non-ionizing radiation risk is a thing.
Much data out there.
https://www.niehs.nih.gov/health/topics/agents/cellphones/index.cfm
This took a few seconds to find.
Much more data out there.