Since Medco and Express Scripts have come together as one company to manage your prescription drug benefit, the information Medco had on file for you is now available to the merged company.
Frigid winds make you shiver; dry air chaps unprotected lips and hands; and a lack of sunshine can even cause depression. Cold weather also puts immense strain on the heart. Low temperatures cause your blood vessels and arteries to narrow, restricting blood flow and reducing oxygen to the heart. Your heart must pump harder to circulate blood through the constricted blood vessels. As a result, your blood pressure increases. A sudden spike in blood pressure â especially when paired with outdoor exertion, such as shoveling a snowy sidewalk â can cause serious issues such as: 1  Unstable chest pain.
A answered. The blood vessels in your skin constrict or narrow in cold surroundings, this reduces the amount of heat lost through your skin in an attempt to maintain your internal temperature. Because of this the skin receives less blood and turns a bluish hue. The opposite will happen in warm surroundings, so the blood vessels will dilate or become larger in an attempt to cool the body. Thus the skin will appear more reddish.