As most of us would likely guess, walking is the most popular physical activity in America. But people who walk for exercise do so at wildly varying speeds and intensities. Some stroll at a leisurely 2 miles per hour, which is low-intensity exercise. Others zip along at twice that pace or better, resulting in a sweatier workout.
Mummification is a process in which the skin and flesh of a corpse can be preserved. The process can occur either naturally, or it can be intentional. If it occurs naturally, it is the result of cold (as can be found in a glacier), acid (as can be found in a bog) or dryness.
The Osiris Myth & Mummification. By the time of the Old Kingdom of Egypt (c. 2613-2181 BCE), mummification had become standard practice in handling the deceased and mortuary rituals grew up around death, dying, and mummification. These rituals and their symbols were largely derived from the cult of Osiris who had already become a popular god.