How can a fever produce a slower pulse rate?

An extremely important factor that affects the heart rate is the temperature. Warmer temperatures cause the heart to beat faster and put considerable strain on the body. Simply put, when it is hot, the body should move more blood to the skin to cool, while also keeping the blood flowing to the muscles. read more

There can be an association between fever and a slower pulse, but the fever is not the cause of the slower pulse. A relatively slower pulse during a fever is symptomatic of a few specific types of bacterial and viral infection, including Legionnaire’s disease, dengue fever, typhoid and chlamydia-induced pneumonia. read more

Bradycardia also occurs in some people who have certain medical illnesses not related to the heart, such as: An abnormally low level of thyroid hormones (hypothyroidism) An abnormally low body temperature (hypothermia) A very high blood potassium level. Lyme disease. Typhoid fever . Symptoms. Bradycardia can cause dizziness, weakness, lack of energy or fainting spells. read more

Aseptic meningitis, or viral meningitis, can cause fever, headaches, neck pain, nausea, and more. Generalized anxiety disorder. Generalized anxiety disorder is a condition in which a person has nearly constant anxiety. Bacterial pneumonia. Bacterial pneumonia is a lung infection caused by bacteria, and causes a cough, fever, weakness and more. read more