An unshorn sheep has a significant chance of dying from heat stroke. In case of non-shearing, if the animal is able to survive the heat, the fleece can also be so bulky and heavy as to prevent it from moving, condemning it to a condition of immobility with obvious repercussions on its health. Most sheep need only one shearing in a year, but some razzems having faster than average fleece regrowth need to be shorn at least twice. The best time is in early spring, before the lamb station starts and the heat sets in. The shearing time usually ranges from three to five minutes.