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.
Fear can affect blood pressure readings. High blood pressure may be a side effect of certain medications. Exercising regularly may help treat hypertension problems. People who have hypertension should avoid drinking alcohol in excess. It is important for someone with hypertension to eat healthy. Hypotension may be indicative of diabetes. As blood pressure may rise as a result of pregnancy, women should be monitored for pre-eclampsia. Avoiding salty snacks can help to reduce blood pressure. Immediate stimuli such as anger can temporarily raise a personâs blood pressure.