Palpitations, which are frequently uncomfortable but seldom an indication of cardiac illness, are the sense that the heart is speeding, hammering, fluttering, or skipping a beat.
Coffee contains caffeine, which can cause heart palpitations.
The caffeine in coffee promotes the adrenaline's release, which can quicken the heartbeat.
As a result, drinking too much coffee might make your heart race.
Since some people are more sensitive to caffeine than others, it can occasionally cause people to experience heart palpitations (the sensation of feeling your heart beating, whether that is normally, quickly, slowly, or irregularly; some people describe feeling their heart pounding or fluttering).