What is the variable of the project "how does music affect a person's blood pressure."

It can relieve stress, lowering blood pressure or it can increase blood pressure through volume/intensity/wave vibrations.

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.

Ascience cannot answer religious question