You rely on your feet to get around, stand in line, exercise, and even dance. But did you know that your feet can also be an early warning sign of a heart attack?

Your feet can provide subtle clues about your cardiovascular health, and in some cases, warning signs can appear up to a month (or more) before a heart attack. These signs aren’t definitive, but they could indicate poor circulation or heart dysfunction that requires medical attention.

Here are some signs related to the feet that may occur one month before a heart attack:

1. Cold feet or toes

Persistently cold feet, even in warm environments, may indicate poor blood circulation.

A weakened heart cannot pump blood effectively to the extremities.