Environmental contaminants are chemicals that are present in the environment in which the food is grown, harvested, transported, stored, packaged, processed, and consumed. The physical contact of the food with its environment results in its contamination.Possible sources of contamination include:lso, food contaminant testing assures consumers safety and quality of purchased food products and can prevent foodborne diseases, and chemical, microbiological, or physical food hazards.
If you have high blood pressure, the increased pressure of blood flowing through your ... These changes can affect arteries throughout your body, blocking blood flow to your heart, kidneys ... chest pain (angina), heart attack, heart failure, kidney failure, stroke, blocked arteries in your ...
The opposition of blood flow due to friction between the blood and the vessel walls. 3 factors contribute to resistance: 1) The size of the vessel lumen, the smaller the lumen the greater the resistance. Therefore, vasoconstriction increases resistance to flow.