<span>While you sleep, your brain processes sounds on a basic level, sometimes causing you to wake or jostle. The impact of sound depends on the stage of sleep you are in.</span>
Answer:
Some effects of childhood immunization are
pain, redness and swelling at the injection site.
fever.
vomiting.
abnormal crying.
irritability.
loss of appetite.
There are still some cases of polio in the united states because there is a large amount of people in the united states who aren’t vaccinated