How stun guns work?
Stun gun uses high voltage and low amperage to temporarily disable an attacker for several minutes. Stun gun does not rely on pain for results. The energy stored in stun gun is dumped into the attacker muscles causing them to do a great deal of work rapidly. This rapid work cycle instantly depletes the attacker blood sugar by converting it to lactic acid. In short, he is unable to produce energy for his muscles, and his body is unable to function properly. Stun gun also interrupts the tiny neurological impulses that control and direct voluntary muscle movement. When the attacker neuromuscular system is overwhelmed and controlled by the stun gun he loses his balance.

When a stun gun touches both probes against the assailantā??s body for Ā½ second, it will startle the assailant, giving him some pain, muscular contraction and shock. For 1-2 seconds, it will cause muscle spasms and a dazed mental state. For 3-5 seconds, it will cause loss of balance and muscle control, total mental confusion and disorientation, leaving him dazed. Under no conditions can you suffer a charge back to your own body, even if the assailant touches you while you are using a stun gun on him.
http://www.beststungun.com/faq.html#must%20the%20probes

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