There are 4 steps of memory (according to information-processing models):
(a) Encoding
(b) Storage
(c) Retrieval
(d) Parallel processing

What happens to the neurons in your brain every time you learn something new?

When you learn something new neurons in your brain start parallel processing.

Explanation:

In information-  processing models there are four stage;

All these levels similarly work in our brain when a person learn, retain, retrieve something new. A child in its growing stage run through all these phases (0 to 12 years old).

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.

answer; have joints that fail from excess by early the accumulated effects of unnoticed infections,all of these things are possible for a person born without the ability to feel pain;