What are the greatest challenges to good Communication?

Being able to actually be comfortable with the people around you, getting comfortable means less shyness which means better communication. Also if the person went through something traumatic, they might feel like it was their fault, so due to that they might keep to themselves very often.

Explanation:

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.

yes. i think it is for sure.