What are some examples of deficiency diseases?

Can you give Any examples of (heart) diseases that increase blood flow?

• most diseases, I'm specially looking for heart diseases, I notice would decrease blood flow like if there's blockage or Ischemia...but what cardiac diseases would instead cause a higher blood flow? Also,Would Hypertension(high Blood pressure) cause a higher blood flow or would it be lower? what about its effects on pulse and heart rate? WHY?? Thanks!

• Answer:

  i think sickle cell counts. since hemoglobin contains nitric acid. nitric acid is a gas that relaxes the walls of the vessels resulting in lower blood flow. so tighter blood vessels means less space, so higher BP/blood flow. i know its not heart but its the only one i can think of :/