Continuous physical overloads, especially environmental disturbances, drain the body's physical capacity because the immune system is forced to work overtime on keeping up our health. Naturally the body needs an increased level of fuel to burn when challenged. Though we might take in more nutrition, physical overloads still compromise the body's health by challenging the liver's capability to distribute the proper amount and type of energy needed. To therefore maintain one's vitality, it is important to know what are the actual boundaries of the physical overloads accepted by one's specific body construct, which in general terms can be revealed by analysing a person's unique dna codon Vitality definition.