An AC system has many components: compressor, condenser, receiver dryer, evaporator, and hoses. The compressor, the âheartâ of the carâs air conditioning system works like a pump taking refrigerant, (R-12 in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator. The AC compressor has several moving parts (including pistons and valves).
Quick Answer. According to WebMD, a normal blood pressure is lower than 120/80. This means that the systolic number is 120 or lower, and the diastolic number is 80 or lower. The systolic number measures artery pressure when the heart contracts. The diastolic number measures artery pressure between heartbeats.
Keep your blood sugar levels close to normal to prevent many of these complications. The American Diabetes Association's goals for blood sugar control in people with diabetes are levels of 70 mg/dL to 130 mg/dL before meals, and less than 180 mg/dL after meals. The organ overcompensates and insulin levels remain too high. 2  Over time, the pancreas is permanently damaged. 3  High levels of blood sugar can cause changes that lead to a hardening of the blood vessels, what doctors call atherosclerosis.