The first regulator in our body is

The first regulator in our body is the balance
of pH in our blood. When individuals exercise, the heart rate, systolic pressure,
and the amount of blood pumped per heartbeat increases. Exercising causes our metabolism
to become more active, which produces more CO2 and H+ in the
muscles. The increased concentration of H+ ions drops the pH. A significantly low
 pH causes acidosis (Figure 3), which affects
the protein functions; their dependent on pH change alters their structure and denatures
the enzymes purpose. Proteins don’t function adequately with low ph values. The
excess amount of H+ then enters the cell; however, to maintain homeostasis
proper chemical composition of fluid is needed outside the cell for proper
chemical composition inside the cell. The body has buffers that kick in to fix
the pH levels – the kidneys eliminating H+ from the body through the excretory
system. The process, known as metabolic acidosis, is very slow and takes a long
time to secrete the urine and bring down the pH values. The lungs, through excessive
breathing, provide a faster and efficient process to eliminate the CO2 concentration
and increase the pH, when needed.