A doctor has said that cold sweats and fatigue are among the early warning signs that someone is in danger of having a heart attack. The US healthcare company Sutter Health says that "subtle" symptoms can be experienced months before an attack actually happens.
Zi-Jian Xu is a cardiologist with the Sutter Health network and has shared some of the signs that you can look out for. For some, Dr Xu said that symptoms can occur months or even longer before a heart attack, the Liverpool Echo reports.
But others may not experience anything at all before a heart attack happens. The risk of a heart attack can increase through a family/personal history, blood pressure, cholesterol levels and age.