cadmium can cause loss of the ability to smell at low levels
Too much testerone can be very dangerous. If you have too much it can cause extremes fits of anger and rage and you can become a victim to yourself and the people around you.
Low estrogen levels are known to cause delayed breast growth in teenage girls, but is not the only cause.
low copper levels
yes.
I'd be willing to bet you are doing a case study for a biology class
yes
yes
No
Yes
It means your iron levels are low. If can cause dizziness and fatigue. You should take extra iron and seek to address the cause of the low iron.
Yes, it can. The low sugar levels cause you brain to malfunction.