<span>The diagnostic procedure Rachel will immediately receive is a breast exam by a doctor, and this may be followed up with a mammogram, or alternatively a breast ultrasound (these are more effective for younger women). A mammogram uses an X-ray to create a picture of your breast. </span>
I believe the answer is false. Good sleep hygiene can be ensured by maintaining a constant bedtime.<span />
The immune system, I'm pretty sure.