Why do some people have a different "charge" than others?

One thing that intrigued me was how some people had different charges than others while we were putting our hands on metal, and for those of you interested in Bio health or even the answer to this question I may have a short explanation. So from what I understand, the charge is coming from electrolytes: potsssium, calcium, sodium, chloride, magnesium, phosphate, and bicarbonate. Electrolytes regulate our nerve system, muscle contraction, blood pH, blood pressure, and our body's hydration. They all play a specific role within our bodies; therefore the different charges could mean you were deficient in one or more electrolytes. Also, our skin is very resistant to letting things in/out, so electrolytes can be released via sweating. Those who sweat more those more electrolytes and give off a higher "charge." If you seemed "dead" compared to other people, or even a carrot, there's not much to worry about because everyone is different, and your body may or may not need as many electrolytes to function. But if you're worried you can surely find them in fruits and vegetables!