According to Melzack and Wall's gate theory of pain, why does ...

[tth]

According to Melzack and Wall's gate theory of pain, why does rubbing your elbow after you bump it help reduce the pain?
 
  a. Rubbing produces an increased release of endorphins.
 b. Rubbing produces a refractory period in nociceptors, preventing their further activation.
 c. Input from rubbing competes with ascending pain messages.
 d. The act of rubbing has a placebo effect on the pain.

Question 2

Sex hormones are
 
  a. proteins.
 b. steroids, because they are synthesized from proteins.
  c. amino acids.
 d. steroids, because they are synthesized from cholesterol.

[lou]

Answer to Question 1

c

Answer to Question 2

d

[tth]

Thanks for the timely response, appreciate it

[abro1885]

Gracias!