Final answer:
If you were stabbed by a tungsten needle that tapers down to the thickness of a single atom, it would cause severe internal damage, potentially toxic effects, and significant health complications.
Step-by-step explanation:
If you were stabbed by a tungsten needle that tapers down to the thickness of a single atom, it would have significant effects on your body. Tungsten is a dense and heavy metal, so the needle would likely cause severe internal damage as it penetrates through your tissues. Additionally, the extremely small size of the needle would make it difficult for your body's defenses to recognize and respond to the injury properly.
Furthermore, tungsten is a toxic substance, so it could also have toxic effects on your body if it enters your bloodstream. This could lead to further health complications.
In summary, being stabbed by a tungsten needle that tapers down to the thickness of a single atom would cause severe internal damage, potentially toxic effects, and significant health complications.