Because Wild 2 has ventured close to the sun only five times since then, Brownlee thinks it is a fairly fresh comet, with less of the black crust that
insulates older bodies that have been cooked repeatedly by the sun.
Humans can overheat if core
body temperatures much above 98.6 ° F (37 ° C) are sustained.16 Normally, when skin temperatures is somewhat cooler than 98.6 ° F (37 ° C), the
body loses its metabolically generated heat by conducting that heat outward from the core.7 Extremely hot and humid conditions, however, can make it difficult to keep this heat balance maintained.16 Extreme heat can be particularly dangerous to
old, young, or frail people; to those suffering from cardiovascular, respiratory, or diabetic disease; and to lower - income people who do not have well -
insulated homes or air - conditioning.17, 18