The human body is very similar to a car. Following are some similarities between the human body and the car.
| Car | Human |
|---|---|
| ECU (Electronic Control Unit) | Brain |
| Engine and fuel pump | Heart |
| Air intake | Nose and lungs |
| Exhaust | Anus |
| Vehicle Identification Number (VIN) | Fingerprint |
| Wheels | Legs and hands |
| Fuel | Food |
| Fuel tank | Stomach |
| Ball joints | Elbows and knees |
| Horn | Mouth |
| Car diagnostic scan | Human vital signs/Medical scan |
| Car structural frame | Skeletal system |
| Engine torque | Strength |
| Engine oil and other fluids | Blood and body fluids |
| Car chassis | Human spinal cord |
| Oil and fuel filters | Kidneys |
| Shock absorbers | Cartilages and fat |
| Fuel and radiator filler | Mouth to eat and drink |
| Windscreen wipers | Eyelashes |
| Headlight and windscreen | Eyes |
| Turbo and superchargers | Steroids |
| Tires | Shoes |
When a car stops working, whether due to lots of use (like old age in humans) or an accident (like humans getting injured in an accident), it can be fixed, e.g. by flushing and replacing dirty transmission fluid (like human blood dialysis), or a part can be replaced (like a human organ transplant). Like cars, the human body requires maintenance and can often be repaired. However, the fundamental difference between the two lies in their ability to be resuscitated after experiencing a catastrophic failure. With a car, you can wait forever and still be able to fix it. When a car is dead, e.g. if the engine is off, there’s always a way to bring the car back to life, whether by opening the engine to replace one small part or replacing the engine altogether. In contrast, once a human’s engine (heart) is off (the heart’s electrical system fails, which causes the heart to stop pumping blood), there’s only so much time before the person is completely dead. One must rush to try to restart the heart by either
- CPR or mouth-to-mouth resuscitation
- Resuscitation with an automated external defibrillator (AED) device
- Chest compressions
Time is of the essence. Usually, the person would be considered dead if there is no pulse within 5 minutes. Unlike a car engine, transplanting a perfect heart once someone is dead will not bring the person back to life. Therefore, something must have existed in the human other than the physical parts that gave it life. Some (most) people call this thing the “soul”. Whatever you want to call it, it seems then that this soul is an intangible and invisible form of life (to the human eyes, at least) that transcends the limitations of the material body.
