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

Smoking affects the lungs and other organ systems, including the heart. The carbon monoxide from tobacco reduces oxygen to the heart, causing it to beat faster to deliver oxygen to the body. Share on ...

It’s normal to experience occasional heart palpitations due to stress, exercise, and excessive caffeine or stimulants. Write down what you were doing before your heart started racing. This record can ...

If you're new to the world of POTS, whether that's because of its newfound connections with Long COVID-19, or its recent momentum on social media, you've probably come across the long list of symptoms ...