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  2. Cold injury - Wikipedia

    en.wikipedia.org/wiki/Cold_injury

    Cold injury (or cold weather injury) is damage to the body from cold exposure, including hypothermia and several skin injuries. [6] Cold-related skin injuries are categorized into freezing and nonfreezing cold injuries. [5] Freezing cold injuries involve tissue damage when exposed to temperatures below freezing (less than 0 degrees Celsius).

  3. Insect winter ecology - Wikipedia

    en.wikipedia.org/wiki/Insect_winter_ecology

    In order for water to freeze, a nucleus must be present upon which an ice crystal can begin to grow. At low temperatures, nuclei may arise spontaneously from clusters of slow-moving water molecules. Alternatively, substances that facilitate the aggregation of water molecules can increase the probability that they will reach the critical size ...

  4. Cold shock response - Wikipedia

    en.wikipedia.org/wiki/Cold_shock_response

    Cold shock response is a series of neurogenic cardio-respiratory responses caused by sudden immersion in cold water. In cold water immersions, such as by falling through thin ice, cold shock response is perhaps the most common cause of death. [1] Also, the abrupt contact with very cold water may cause involuntary inhalation, which, if ...

  5. Frostbite - Wikipedia

    en.wikipedia.org/wiki/Frostbite

    The pathological mechanism by which frostbite causes body tissue injury can be characterized by four stages: Prefreeze, freeze-thaw, vascular stasis, and the late ischemic stage. [16] Prefreeze phase: involves the cooling of tissues without ice crystal formation. [16] Freeze-thaw phase: ice-crystals form, resulting in cellular damage and death ...

  6. Hibiscus acetosella - Wikipedia

    en.wikipedia.org/wiki/Hibiscus_acetosella

    Cranberry hibiscus is a member of a perennial group known as hardy hibiscus. [3] In contrast to the tropical hibiscus, hardy hibiscus can tolerate colder conditions, are more vigorous, longer lasting, and have larger flowers. [3] In colder climates, Hibiscus acetosella is easily an annual, but is often regarded as a perennial to zone 8–11 ...

  7. Dousing - Wikipedia

    en.wikipedia.org/wiki/Dousing

    Compare cold water dousing with ice swimming. The effects of dousing are usually more intense and longer-lasting than just a cold shower. Ending a shower with cold water is an old naturopathic tradition. There are those who believe that this fever is helpful in killing harmful bacteria and leaving the hardier beneficial bacteria in the body.

  8. Hibiscus denudatus - Wikipedia

    en.wikipedia.org/wiki/Hibiscus_denudatus

    Hibiscus denudatus (common names: paleface, rock hibiscus) is a perennial shrub of the mallow family, Malvaceae.It is in the rosemallow genus, Hibiscus. It is found in the southwest of North America in the southwestern United States and northern Mexico in the states of extreme southeast California, southern Nevada, southern Arizona and New Mexico, southwest Texas, Baja California-north, Sonora ...

  9. Hibiscus moscheutos - Wikipedia

    en.wikipedia.org/wiki/Hibiscus_moscheutos

    Hibiscus moscheutos, the rose mallow, swamp rose-mallow, [2] crimsoneyed rosemallow, [3] or eastern rosemallow, [1] is a species of flowering plant in the family Malvaceae. It is a cold-hardy perennial wetland plant that can grow in large colonies.