Human: Is there any way to tell if someone is having a heart attack? Assistant: 
Yes, there are several ways to tell if someone is having a heart attack. One of the most common symptoms is chest pain or discomfort that lasts for more than a few minutes and may feel like pressure, squeezing, fullness, or pain in other areas of the upper body. Other signs can include shortness of breath, nausea, sweating, light-headedness, and fatigue. If you suspect someone may be having a heart attack, call 911 immediately.