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March 16 is International Sleep Day. And we should all celebrate the act of sleeping Studies have shown that a good night's rest helps us stay healthy, both mentally and physically.
(1)
Researchers say sleep is probably the best tool we have for memory and learning. Getting a good night's sleep is important for the learning and memory process. It's important because it stores the training exercises and the learning exercises into our more permanent memory while we're sleeping 7-8 hours in bed. And then the next morning when you wake up your mind is better prepared to act on that information.
(2)
But what about getting a rest during the middle of the day? Short periods ol sleep, or napping, may help our brains work better. Past studies have shown that napping can help babies and young children learn better. And it can also help older adults' brain activity. Taking a nap may also help this older group of people light of memory loss.
(3)
However, many people may not want to say that they take a nap. They may think that napping shows they are weak or lack energy that only children, the very old, sick or lazy people nap. In fact. Americans sometimes do a very strange thing some people love to talk about how few hours of sleep they need each night. Experts warn that adults should get from seven to eight hours of sleep each night.
(4)
While resting in the middle of the work day may seem like a luxury to Americans, napping is very much part of a normal, everyday life in other parts of the world. However. that may be changing. Many offices now offer napping rooms and napping cafes are appearing in many U.S. cities, including Washington, D.C.
(5)
Today doctors are recommending that young, healthy adults should try to sleep for about 30 minutes or less. And 30 minutes is enough to remove the desire to sleep and will help to leel more awake. If you nap longer, we will get into deeper sleep, which can be hard to get out of. Doctors also warn that if you have trouble falling asleep at night. you should not nap for more than 45 minutes, and you should do it before 3 p.m. in the afternoon.

A. Light sleeping for young and old
B. Sleep well –be healthy
C. Medical advice
D. Some people's belief
E. World napping record
F. The importance of bedtime for our memory and learning
G. Napping for Armerican workers

read the text and match the headings (A-G) to the paragraphs (I-5). There are two extra headings you do not need to use.​