Transcription
Your body does something scary the second you die.
The instant your heart stops, every single muscle in your body relaxes at once, including the ones holding everything inside you. That's why most people defecate themselves right after death. Your pupils dilate fully and stop responding to light. Even your face changes. Wrinkles vanish as the muscles that pulled on your skin your whole life finally release.
But here's the really strange part. Even though your body is dead, your brain doesn't know it yet. Scientists have put sensors on dying patients and found that in the seconds after the heart stops, the brain suddenly lights up with a massive surge of activity patterns similar to those used during dreaming or memory recall. They believe this might be your brain replaying your life one last time before shutting down, which could explain why people who survive near-death experiences report seeing their life flash before their eyes.
Your body also retains reflexes for a short time. If someone tapped your knee right after death, your leg could still kick. And on a cellular level, your cells continue struggling to survive using whatever oxygen remains in your blood. Your body never gives up. It will use even the tiniest bits of energy that is left to try and protect.