What's going on with heart swellingSwelling and pain in the heart is a common symptom of physical discomfort and can be caused by a variety of reasons. Recently, in the discussion on health topics across the Internet, the related content of heart swelling and pain has also become one of the hot topi

How to check catecholaminesCatecholamines are an important class of neurotransmitters and hormones, including epinephrine, norepinephrine and dopamine. They participate in a variety of physiological functions in the human body, such as blood pressure regulation, heart rate control and stress respons