They cannot jump or fly but can crawl very quickly. Lice live by sucking human blood from the scalp of an individual at least every 3-6 hours. Each adult female lays about 5-10 nits per day, which she glues to the hair shaft. These lice will then lay nits in approximately 8-10 days. Lice have a life span of about 30 days.
People get lice from other people.
They are passed from one individual to another by direct head to head contact. They are passed through the sharing of personal items such as combs, brushes, hats, bedding, towels or other headgear. They are also passed in places such as car pools, movie theaters or waiting rooms. Anyone can get lice. The cleanliness of an individuals hair has nothing to do with one's ability to get lice.