biophysicselectricity
Do the electromagnetic waves that the human body emit differ depending on the emotional state the person at a given time?
Which leads me to ask if this is true, does this have a impact on the body if it is subjected to negative emotion for a sustained length of time?
Your assumption that Ohm's law is fully accurate for the stun gun + human circuit isn't correct. A stun gun uses a capacitor to store charge and the capacitor is constantly being recharged to deliver a series of high-voltage pulses.
A capacitor has a finite amount of charge. Once it's charged, that's it, it can never deliver more charge than that until it is recharged. The measure of the stun gun voltage is when it's an open circuit. Basically the voltage is telling you how strong the electric field is but it isn't telling you something that's very useful for Ohm's law.
The graph of a charging and then discharging capacitor looks something like this:
The only thing the resistance of your body can affect is how quickly the discharge occurs. It's not possible to deliver more charge than is stored in the capacitor and it is the capacitance that is the primary safety mechanism.
So the voltage of the open circuit at the peak is not really a meaningful measure of the total amount of current that will flow per pulse.
Regarding your option 1: it isn't a lie but yes, you're somewhat right anyways (voltage drops on discharge).
Regarding your option 2: the pulses duration is closely related to the capacitance of the capacitor so yes, this is somewhat right too.
Regarding your option 3: I'm sure there is some amount of "skin effect" but I'm not sure how much.
I should also mention that sometimes stun guns DO kill.
Unlike most depictions that you see in movies or heard of maybe, the human body can actually maintain its stability for a short while. I am not sure of exactly how long it takes for a permanent injury to occur or swellings to start appearing, but what is known is that there's no immediate injury.
Meaning you do not explode, your blood doesn't boil, nor does it freeze, and you don't lose consciousness instantly. Why? there are two important factors in play:
Finally, surprisingly one actually dies of asphyxiation. Air would immediately leave the lungs due to the enormous difference of pressure between your body and the vacuum around you. Then any oxygen dissolved in the blood would empty into the lungs to try to equalize the partial pressure difference, and your brain starts to die.
In a nutshell, our skin and lack of matter(no atoms/molecules: exchange kinetic energy with what? of course radiation still takes place) in space make the instantaneous effects impossible.
For further reading: Human body in a vacuum
Best Answer
As others have said, yes, they do for the reasons already stated. However, I think the OP meant that if I am close to someone with negative emotions all the time, will their electromagnetic field emissions have an effect on me? (Different than if they are happy for example.)
The answer is no. Electromagnetic fields can have an effect on people. For example, transcranial magnetic stimulation is a very real effect that can change your personality, at least for a while after stimulation. However, the fields needed for this effect are relatively strong and need to have very specific properties and localization to produce the desired effects. In another example, get into a giant microwave oven turned on and things will not be pleasant. Once again, the fields must be very large. However, any change in electromagnetic radiation that results from your emotions is extremely small compared to your "background" emissions and to the environment. You also have no specific sense able to detect such changes emitted from people around you.
This is not to say that being with negative people could not be bad for you, but the effects of the electromagnetic field is not the cause. This would be more a question for a psychology forum.