Restriction of blood flow, something is blocking the blood flow, heart has slowed down and is being pushed to hard.
The are six essential nutrients that are needed for the human body. n essential nutrient is a nutrient that the body cannot synthesize on its own. These nutrients are carbohydrates, protein, fat, vitamins, minerals and water. Hope this answers the question.
The answer is Sodium Chloride
I'm new here and this is one of the first things i've done on this site but to answer the question, i believe the answer is amino acids