Sleep, alertness and temperature vary in a daily cycle

THE UPS AND DOWNS OF ALERTNESS

The ups and downs of your body temperature determine whether you will be a lark or an owl. A lark’s body temperature rises sharply in the morning, reaching a peak between late afternoon and early evening. This is when the larks are the most productive. But as body temperature decreases, so does energy level. By nine o’clock, larks are getting sleepy. Owls work on a different schedule. Their body temperature rises more gradually and peaks later in the day. This allows them to keep going while larks are getting ready for bed.

DO YOU KNOW THAT?

Like many creative geniuses, the Italian painter Leonardo Da Vinci was a workaholic. There were days when he just didn’t want to waste time sleeping. To get the rest he needed, Da Vinci came up with an interesting solution: he took a fifteen minute nap, six times a day. This means that in a 24-hour period, he got a total of an hour and a half of sleep. This schedule might not work everyone, but it does make you wonder how much sleep a person really needs.

During World War II, British Prime Minister Winston Churchill scheduled meetings around his naps. He thought naps helped to keep him alert.

Albert Einstein took regular naps to refresh his mind. Tomas Edison, the inventor of the light bulb, thought sleeping all night wasted a lot of time. Taking naps wasted less time.

² 10. Listening. Listen to the results of the survey on daily schedules and fill in the missing numbers:

1. a. 85% of all listeners sleep between 6 and 8 hours at night. b. sleep more than 8 hours each night. c.Sleep fewer than 6 hours a night. d. Have trouble getting to sleep at night. II. a. feel drowsy in the afternoon. b. take a nap during the day. III. a. have a night or evening job. b. fell asleep on the job at least once.  

— 11. Practice.

Read English proverbs and try to find Russian equivalents:

Early to bed, early to rise makes a man healthy, wealthy and wise.

Never put off till tomorrow what you can do today.

A good beginning makes a good ending.

If you want a thing well done do it yourself.

What is done cannot be undone.

An hour in the morning is worth two in the evening.

Early bird catches the worm.

Use these proverbs in the situations of your own.

Practice

Read letters from newspaper column “Advice from Marla”. Then write Marla’s response to the second letter.

Now write Marla’s answer.

@ 13. Writing

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