Can undiagnosed severe iron deficiency anemia cause harm to cognitive ability

Whats the difference between epinephrine and norepinephrine?

Effective antiviral drugs are usually associated with which of the following properties? a) interference with viral replicationb) prevention of the host from becoming infectedc) removal of viral proteinsd) removal of viral mrnas

What else happens in your cardiovascular system in response to your sympathetic nervous system? why might your blood vessels need to expand to accommodate this?