4. Anxiety
Anxiety is a common symptom associated with a number of different circulatory system problems. To understand this, it is important to recognize the close link between our physiology and our mood. Physiology describes things like our heartrate, our tension, our sleep-or-lack-thereof… all these things can leave us tense and irate which in turn increase arousal.
And this then has the knock-on effect of sending more signals to the body and making you feel more highly stressed. When the heart rate goes up, so does cortisol, dopamine and adrenaline.