In simple terms, DHCP determines if your IP is static or dynamic and the length of time an IP address is assigned. Dynamic Host Configuration Protocol is controlled by a DHCP server. Your router can be a DHCP server...and if you're on a home network, it most likely serves this purpose.
Researchers report that the average adolescent needs eight and a half to nine and a half hours of sleep each night. But in a poll taken in 2006 by the National Sleep Foundation, less than 20 percent reported getting that much rest on school nights.
To determine how much sleep you need, it's important to assess not only where you fall on the sleep needs spectrum, but also to examine what lifestyle factors are affecting the quality and quantity of your sleep such as work schedules and stress. To get the sleep you need, you must look at the big picture. How Much Sleep Do We Really Need: Revisited . The National Sleep Foundation released the results of a world-class study that took more than two years of research to complete â an update to our most-cited guidelines on how much sleep you really need at each age. You can read the research paper published in Sleep Health .