Body & Soul3 mins ago
Painkillers
2 Answers
If i take painkillers say for a headache, how does the tablet know its my head thats sore and manage to stop it aching?
Answers
Best Answer
No best answer has yet been selected by isymcd. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.
-- answer removed --
they don't look for heads, they look for the chemicals that cause aches
http://www.channel4.com/science/microsites/S/s cience/medicine/pain_faq.html
http://www.channel4.com/science/microsites/S/s cience/medicine/pain_faq.html