so my friend and i were having an argument yesterday over ephedra and your heart. his argument was that ephedra is actually good for your heart, because it increases your heart rate, and therefore strengthens your heart (he said its the same as doing cardio because 'your heart doesnt know the difference between beating fast from ephedra or beating fast from doing physical activity)... i said that was stupid, but really had no retort, can someone help clarify this for me?
i compared it to caffeine, which he said is only bad for your heart in high doses bc its a vasoconstrictor, thus can increase blood pressure. he argued that ephedra isnt a vasoconstrictor and just increases your heart rate, and, 'anything that increases your heart rate will strengthen your heart'. my only response was that it doesnt help your respiratory system like cardio, but that doesnt really have to do with the strength of ones heart.
am i the stupid one here? it just didnt seem to make sense to me, but i couldnt articulate why. can you strengthen your heart by taking something that increases your heart rate similar to cardio, without the cardio?
i compared it to caffeine, which he said is only bad for your heart in high doses bc its a vasoconstrictor, thus can increase blood pressure. he argued that ephedra isnt a vasoconstrictor and just increases your heart rate, and, 'anything that increases your heart rate will strengthen your heart'. my only response was that it doesnt help your respiratory system like cardio, but that doesnt really have to do with the strength of ones heart.
am i the stupid one here? it just didnt seem to make sense to me, but i couldnt articulate why. can you strengthen your heart by taking something that increases your heart rate similar to cardio, without the cardio?