Sudden Temperature Changes Can Cause Health Problems

(Undated) -- The polar vortex returned to the eastern half of the country this week, and that may cause some health problems. Dr. David Frid is a cardiologist. He says blood vessels constrict in colder weather to help the body conserve heat and energy. Dr. Frid explains constricted blood vessels can also cause a rise in blood pressure and increase risk of blood clots. Migraine and arthritis sufferers may also see more problems from the temperature changes.