by sex
The capillaries keep blood from leaking. They clot together quickly and keep as much blood inside the body as possible.
# I think that is an 'urban legend'. In a study from 1959, 'Effect of prolonged cold exposure on the gross blood composition of the rat' no change in hematoocrit levels were seen.
Vasoconstriction, the tightening/narrowing of blood vessel diameter, is the "how" blood flow is limited when it's cold. The "why" deals mainly with your body attempting to keep its core warm. So anything around your heart mainly. Therefore, all extremities get less blood.
They Keep out cold and keep in hot or keep in cold and keep out hot it depends on the weather
Cold weather can cause nipples to become erect and nipples and breasts to shrink due to vasoconstriction, a narrowing of the blood vessels in response to cold temperatures. Some women may also experience discomfort or chafing from the cold weather. It's important to keep the chest area warm and protected in cold weather to maintain comfort and health.
To keep feet warm in cold weather, wear insulated boots or shoes, wool socks, and use toe warmers or heated insoles. Avoid tight footwear that restricts blood flow, and keep moving to improve circulation. Additionally, layering with moisture-wicking materials can help keep feet dry and warm.
Cotton is always a good fiber to have in cold weather. Cotton is warm, and having it in your socks in cold weather will be sure to keep your feet warm.
it could be because its soo cold that it freezes
trying to keep warm
Yes, dogs can wear clothes for protection in cold weather to help keep them warm.
The cardiovascular system helps maintain body temperature in cold weather by regulating blood flow. During exposure to cold, blood vessels constrict to conserve heat and maintain core temperature. At the same time, increased blood circulation to vital organs helps generate heat to keep the body warm.
Put them in a greenhouse and zip it up but keep on watering and checking on them.