A simple difference in the genetic code – two X chromosomes versus one X chromosome and one Y chromosome – can lead to major differences in heart disease. It turns out that these genetic differences influence more than just sex organs and sex assigned at birth – they fundamentally alter the way cardiovascular disease develops and presents.
While sex influences the mechanisms behind how cardiovascular disease develops, gender plays a role in how healthcare providers recognize and manage it. Sex refers to biological characteristics such as genetics, hormones, anatomy, and physiology, while gender refers to social, psychological, and cultural constructs. Women are more likely to die after a first heart attack or stroke than men. Women are also more likely to have additional or different heart attack symptoms that go beyond chest pain, such as nausea, jaw pain, dizziness, and fatigue. It is often difficult to fully disentangle the influences of sex on cardiovascular disease outcomes versus the influences of gender.
While women who haven’t entered menopause have a lower risk of cardiovascular disease than men, their cardiovascular risk accelerates dramatically after menopause. In addition, if a woman has Type 2 diabetes, her risk of heart attack accelerates to be equivalent to that of men, even if the woman with diabetes has not yet gone through menopause. Further data is needed to better understand differences in cardiovascular disease risk among nonbinary and transgender patients.
Despite these differences, one key thing is the same: Heart attack, stroke, and other forms of cardiovascular disease are the leading cause of death for all people, regardless of sex or gender.
