Benadryl for to refresh beta receptors??

[Jack steel]

I've been searching for a real answer for a while and still don't know if this is a fact or not. Does anyone know where this claim comes from?

 

[Jack steel]

Lol good grammar in my title huh?

 

[themondtster]

http://www.elitefitness.com/forum/showthread.php?p=13141883

 

[Jack steel]

Thanks monster!