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FAThe leg movements seen in the video do not mean the person is coming back to life. After death, the brain stops working, but the muscles can still have a small amount of leftover electrical energy. This can make the muscles twitch or move on their own for a short time. This is called a postmortem reflex.
It can look shocking, but it is a normal reaction of the body after death. After death, muscles don’t instantly freeze forever. As oxygen disappears, muscles first relax, then stiffen (a process called rigor mortis), and later loosen again as tissues break down. Gases from decomposition can build up, shifting limbs, arching the back, or even forcing air through the throat—creating groans or sighs that once terrified grave watchers. Skin dries and shrinks, making nails and hair look like they’re growing.
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