Search results
Results From The WOW.Com Content Network
Cold sensitivity or cold intolerance is unusual discomfort felt by some people when in a cool environment. [ 1 ] Cold sensitivity may be a symptom of hypothyroidism , anemia , low body weight, iron deficiency , vitamin B 12 deficiency , fevers , fibromyalgia or vasoconstriction . [ 2 ]
Sufficient stress from extreme external temperature may cause injury or death if it exceeds the ability of the body to thermoregulate. Hypothermia can set in when the core temperature drops to 35 °C (95 °F). [2] Hyperthermia can set in when the core body temperature rises above 37.5–38.3 °C (99.5–100.9 °F).
Hof is an extreme athlete noted for his ability to withstand low temperatures. [2] He attributes his feats to his Wim Hof Method (WHM). [3] Hof's first relevant experiences with the cold goes back to when he was 17: he felt a sudden urge to jump into the freezing cold water of the Beatrixpark canal. [4]
A vacuum is the best insulator, but its use in clothing is impractical. Dry air is a practical insulator. Extreme cold weather clothing uses still dry air to insulate the body, [2] layers of loose air trapping material are most effective. The inner layers should conduct moisture away from the body.
In extreme cases, it can lead to afterdrop, which is when cold blood rushes to the core. This can result in a shock to the circulatory system, heart arrhythmias and tissue damage.
Generation III Extended Cold Weather Clothing System ECWCS levels 7 (left) and 5 (right). The Extended Cold Weather Clothing System (ECWCS / ˈ ɛ k w æ k s /) is a protective clothing system developed in the 1980s by the United States Army Natick Soldier Research, Development and Engineering Center, Natick, Massachusetts.
Just because it's cold for a day, a week, or a season, it doesn't mean global warming is over. All months have been warming since recordkeeping began in 1880, including December. The main cause ...
Reindeer evolved during the last ice age to withstand temperatures as low as minus 94°F (minus 70° C. Yes, you read that right. This is an amazing feat, accomplished only by a select group of ...