Angina

Chest pain or dis­com­fort caused by reduced blood flow to the heart mus­cle, often a warn­ing sign of under­ly­ing heart dis­ease.

Sleep research — includ­ing Stan­ford’s SleepFM study — has found that sig­nals record­ed dur­ing a sin­gle night’s sleep can be asso­ci­at­ed with future risk of this and relat­ed con­di­tions. This is gen­er­al infor­ma­tion, not a diag­no­sis. Learn about the research behind this entry →