He or she might start by checking your weight and height, as well as your blood pressure and maybe your temperature. 1  Blood pressure: This shows how hard your heart is pumping blood throughout your body. A cuff that gets tighter and tighter on your arm is used to measure this.
And people who sleep 8 hr. or more, or less than 6.5 hr., they don't live quite as long. There is just as much risk associated with sleeping too long as with sleeping too short. The big surprise is that long sleep seems to start at 8 hr. Sleeping 8.5 hr. might really be a little worse than sleeping 5 hr.
Fatigue is also common when you're feeling down. How much sleep do you need? The need for sleep can vary quite a lot between individuals, although it's usual to require less sleep as you get older. Children. Small children often need a lot of sleep. Toddlers, for example, need between 14 and 16 hours a day. The need for sleep slowly declines through childhood. Most schoolchildren will need at least 10 to 12 hours of sleep to be at their best during the day. Teenagers function best on 9 hours per night, but few get that much.