Arteriosclerosis is a general term for the hardening of arteries and a loss of elasticity in arterial walls. Atherosclerosis is specifically a condition where arteries harden as a result of plaque buildup on artery walls. Both conditions result in poor and inefficient blood flow through arteries, which can lead to blood clots or ruptures in the blood vessels of the heart or brain. Blockages in the heart can result in heart attacks; blockages and ruptures in the brain lead to strokes.
Answer: The fact that teenagers often feel like adults far earlier than they develop the ability to make sensible, well-thought-out decisions reflects the fact that the limbic system often matures more quickly than the frontal lobe.
The child is more susceptible to diseases than the father because the father has already gained a slight immunity towards the lead by loving in the house longer than the child (assuming the father has lived in the house longer)