AC DC Voltage Pain!!!

How much an alternate current (AC) or direct current (DC) voltage a human body can take before you start to feel uncomfortable? 10 volts, 20 volts, 30 volts, 40 volts or what?
In the video above YouTuber GreatScott! rigged up a setup to test the limits. From the video an extra important thing to note is AC power will produce more current flow to the body due to the human skin acts like a capacitor and will results in muscle paralysis. AC power supply is more dangerous than DC.

Source: GreatScott!