With powder coating, the bottom line is that the aluminum is covered with a coating which cannot be repaired should any peeling or blistering occur. Polished stainless steel differs from powder coating primarily in that the base material is not covered with a coating and the materials are substantially different.
The baroreceptor reflex or baroreflex is the body's way of responding to a change in blood pressure. Baroreceptors in the arteries notice that something has changed. When they sense a change in pressure, they send out signals through nerves to a part of the brain called the brainstem.
Arterial baroreceptors respond very quickly to changes in blood pressure, firing more rapidly as blood pressure increases, resulting in a lowered heart rate and lowered blood vessel resistance. When they stop firing, the central nervous system responds by increasing heart rate and blood vessel resistance.