How often should engage in an aerobic activity to reach an adequate level of cardiovascular fitness?

A typical recommendation is to do 30 minutes of aerobic exercise at sufficient intensity about 2 to 3 times per week in order to reach an adequate level of cardiovascular fitness.

Cotton was the very first

Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.