Personal health monitors make it more difficult to be aware of your general health.

a: true
b: false

Personal health monitors are designed to measure your exercise. Some advanced ones can give you tips to help you be aware of your general health. Overall, personal health monitors make it easier to be aware of your general health. The answer would be B!

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D. contract and relax

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.