A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

Add Yahoo as a preferred source to see more of our stories on Google. You know the feeling. When you first see your crush and your head starts spinning, your palms ...

Your heartbeat lets you know how hard your heart is working to circulate blood throughout your body. Things like exercise, a fever, warm weather, medications, stress, and underlying health conditions ...

Heart palpitations are a common but usually harmless symptom. However, persistent heart palpitations or other severe symptoms, such as chest pain, shortness of breath, or fainting, require prompt ...