How much sleep do you need

-

Another mystery about sleep is that no two persons need the same amount of sleep. Dr. Nathaniel Kleitman, Associate Professor of Physiology at the University of Chicago, who conducted years of extensive experiments at the University’s "Sleeping Laboratory" says that there is no more a normal duration of sleep than there is normal height and weight. 
A study of 25 subjects spread over thousands of nights showed that the average amount of sleep needed to feel well rested is seven-and-a-half hours, though individuals varied from six to nine hours. According to Dr. Demmis Williams, a noted authority on sleep, the amount of sleep needed for an individual’s well-being, is determined by what he feels he needs, not by what other people, including the doctor, think is reasonable.
On the whole, women sleep from 45 minutes to one hour more than men. The amount of sleep required varies at different ages as follows :
New Born : 18 to 20 hours
Growing children :10 to 12 hours
Adults : 6 to 9 hours
Aged persons : 5 to 7 hours.
The depth of ordinary restful sleep fluctuates throughout the sleep. In most adults, sleep deepens through the first hour, after which it lightens rather sharply and then more gradually until morning or until the usual time of wakening. In growing children, however , sleep deepens a second time for a little while. According to Dr. Lindlahr, a famous naturopath, two hours before and two hours after midnight are the most valuable for sleep of all the twenty-four hours of the day. In these four hours, mental and physical vigour are at their lowest ebb and sleep is soundest and most natural.
It is believed that three-quarters of our sleep consists of whatis called ‘ slow wave sleep.’ The restorative processes occur during this time. The remaining quarter is taken by what is called ‘Rapid Eye Movement (REM) sleep.’ It is also called paradosical or dreaming sleep and it comes in episodes of about 20 minutes duration about five times in a night. It involves dreaming, irregular heart rates, raised blood pressure and erection of the penis. It is in this phase of sleep that normal healthy young men may have wet dreams. Both forms of sleep are considered equally important, being normal sleeping rhythms.

Comments

Post a Comment

Disclaimer: Opinions expressed in comments are those of the comment writers alone and does not reflect or represent Toprhythm's view.

Popular posts from this blog

Make Your Resume A Breath of Fresh Air

-
Image
 As a job seeker, it’s easy to see hiring managers as big, bad obstacles that need to be overcome. They’re the gatekeepers, after all. But, this kind of thinking actually leads to weaker job applications. Think about it this way: Hiring managers read a ton of resumes —to the point at which their eyes cross. More importantly, hiring managers are just people. With this in mind, the only thing you really need to do to stand out is to have the one resume that actually lets them breathe a sigh of relief during this painful process. Here are simple things you can do. Make the First Thing on Your Resume Immediately Relevant There’s nothing worse for a hiring manager than having to dig through a resume to find what, exactly, an applicant’s relevant experience entails. Don’t make this harder than it needs to be for the person who will be reading your resume, and make sure the first thing on your resume is something you know he or she wants. Are you applying to a sales position? Titling
Read more

Achieving Mutual Gain in any Negotiation

-
Image
When the parties in a negotiation are committed to a position, they feel that moving from that position is a failure. Instead, the focus should be given to their purposes. To achieve mutual gain, focus should be given on interests, rather than positions. An environment of respect and discipline should be prevalent between both the parties. For example, in a school, one party favours uniforms, the other opposes it. The reasons for the first party to support uniforms is to avoid circumstances where students wear casuals, because it may give rise to an act of bullying where a person or group may act hostile towards each other regarding their individual style.  The second party is against the use of uniforms because wearing a uniform has its own drawbacks. It makes students easily distinguishable to outsiders. It might even cause financial issues for guardians with limited income. In such a case, the solution is to allow students to dress according to a specific dress code. All
Read more

How Long Should My Resume Be

-
Image
How long should my resume be?” is one of the most often asked questions about resumes. Lately, job seekers were advised that a resume should not exceed one page. Those who broke this golden rule were destined for the circular file. Times have changed, and thus has the criteria for resume length. The new guideline is: A resume should be long enough to entice the hiring managers to give you a call for an interview. That may sound vague, but there is no hard-and-fast resume length rule that works for everyone. Things to consider include career objective, occupation, industry, experience, years of experience , scope of accomplishments and education/training. Resume Format: Keep these factors in your mind when deciding on resume length: Your resume can be a career marketing strategy, not an autobiography. Do your best to keep your resume concise and focused on your key selling points. Leave out the past experiences that don’t market you to your current goal. Every word in the res
Read more