A closer look
Cardiovascular rhythms have a subconscious tendency to synchronize with the tempo of the music you are currently listening to, thanks to the autonomic nervous system responding to auditory stimuli; when you blast aggressive techno or high-speed heavy metal, your blood pressure spikes and your pulse accelerates to match the beat, putting your body into a mild state of physiological stress just for entertainment, whereas slow classical melodies can physically force your heart to calm down, acting like a non-prescription beta-blocker for your perpetually stressed-out cardiovascular system, which is a fantastic mechanism that proves your heart is essentially a mindless follower, perfectly willing to alter its life-sustaining rhythm simply because you decided to play a terrible nineties dance track at maximum volume during your morning commute
