A man's water intake is sufficient for his diet. However his blood is always too concentrated as it passes through the hypothalamus. Suggest a possible reason for this observation 

Because the brain enables the body's response to temperature changes

Because deep inside the brain is considered the body's core

Because temperature changes happen most quickly in the brain

Because the brain works best at the correct temperature

Because temperature changes affect the brain first

If blood is too concentrated, the hypothalamus nerve cells will contain too much salt.

If blood is too concentrated, the hypothalamus it registers dehydration in its own cells.

If blood is too concentrated, the hypothalamus registers ADH in the blood.

If blood is too concentrated, nerve cells in the hypothalamus it has nerve cells that lose water by osmosis and fire more slowly.

If blood is too concentrated, in the hypothalamus it registers that its cells are losing water by osmosis.