Hello, Can anybody help me with my question? Apparently our eyes can only see a small portion of the electromagnetic spectrum (the ROYGBIV). The actual electromagnetic spectrum range from radio waves to gamma rays. Included in this assumption is the understanding that this entire spectrum exists even though we are not able to see them. How then are we not affected by Xrays which exist side by side with the visible spectrum ? Why is it that in hospitals, health care providers protect themselves from Xrays when xrays are present in the whole electromagnetic spectrum? Thank you.