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.
In extreme cold, or when the body is exposed to cold for long periods, this protective strategy can reduce blood flow in some areas of the body to dangerously low levels. This lack of blood leads to the eventual freezing and death of skin tissue in the affected areas.t or below 0 Â°C (32 Â°F), blood vessels close to the skin start to constrict, and blood is shunted away from the extremities via the action of glomus bodies. The same response may also be a result of exposure to high winds.