Sour taste in mouth can point to dangerous disease

A sour taste in the mouth can be a harbinger of a heart attack, Express reported referring to the data of British doctors.

According to RIA Novosti, symptoms such as indigestion without belching and heartburn, nausea or vomiting may also indicate a heart attack. Besides, one should pay attention to perspiration for no apparent reason, insomnia, and fatigue.

According to experts, the listed symptoms can remain for several days or occur suddenly.