Propranolol, acting as a beta-blocker, has likewise been shown to use at times an outcome on the formation of memories by using hard emotional content. In the period of super emotional or even traumatic times, adrenaline and noradrenaline are released from either a adrenal medulla which activate beta receptors in the brain. A result is to give a associated memories extra "force" due to the hard emotional content & subsequent beta-receptor activation. Propranolol deflects beta-receptor even action, & thereby reduces or eliminates a emotional component of the memory. A burden is to produce a memory other mundane.