Tuesday, November 17, 2009

Short on Sleep?

I just read about the death of Ranjan Das from Mumbai. Ranjan, just 42 years of age, was the CEO of SAP-Indian Subcontinent, the youngest CEO of an MNC in India. He was very active in sports, was a fitness freak and a marathon runner. On 21st Oct, he returned home from his gym after a workout, collapsed with a massive heart attack and died.

It seems that recently, athletic young men in the prime of health were dropping dead like flies. It's scary because compared to these gym hamsters, I'm absolutely a couch potato. I don't think I get enough exercise sliding about the room on my roller chair, doing housework and wriggling some fingers on the ivories. The only exercise I get is 20 laps in the small pool 3 times a week. (But now that it keeps raining, I haven't been in chlorine for like 2 weeks!) And perhaps 2 short walks with Tiger daily.


This man couldn't have died from stress as the effects of exercising are supposed to counter stress. The report highlights that this man sleeps 4-5 hours per night and purportedly, the reason for his untimely death is the lack of sleep. I've pasted some studies from Mr Madhur Kotharay  who gives us all legitimate excuses to snooze that extra hour in bed.


Ah..off to bed now..zzzz





The Evidence

Last week, I was working with a well-known cardiologist on the subject of ‘Heart Disease caused by Lack of Sleep’. While I cannot share the video nor the slides because of confidentiality reasons, I have distilled the key points below in the hope it will save some of our lives.


Some Excerpts:


· Short sleep duration ( <5 or 5-6 hours ) increased risk for high BP by 350% to 500% compared to those who slept longer than 6 hours per night. Paper published in 2009. As you know, high BP kills.


· Young people ( 25-49 years of age ) are twice as likely to get high BP if they sleep less. Paper published in 2006.


· Individuals who slept less than 5 hours a night had a 3-fold increased risk of heart attacks. Paper published in 1999.


· Complete and partial lack of sleep increased the blood concentrations of High sensitivity C-Reactive Protein (hs-cRP), the strongest predictor of heart attacks. Even after getting adequate sleep later, the levels stayed high!!


· Just one night of sleep loss increases very toxic substances in body such as Interleukin-6 (IL-6), Tumour Necrosis Factor-Alpha (TNF-alpha) and C-reactive protein (cRP). They increase risks of many medical conditions, including cancer, arthritis and heart disease. Paper published in 2004.


· Sleeping for <=5 hours per night leads to 39% increase in heart disease. Sleeping for <=6 hours per night leads to 18% increase in heart disease. Paper published in 2006.




In conclusion:

Barring stress control, Ranjan Das did everything right: eating proper food, exercising ( marathoning! ), maintaining proper weight. But he missed getting proper and adequate sleep, minimum 7 hours. In my opinion, that killed him.
If you are not getting enough sleep ( 7 hours ), you are playing with fire, even if you have low stress.

I always took pride in my ability to work 50 hours at a stretch whenever the situation warranted. But I was so spooked after seeing the scientific evidence last week that since Saturday night, I ensure I do not even set the alarm clock under 7 hours. Now, that is a nice excuse to get some more sleep.

Unfortunately, Ranjan Das is not alone when it comes to missing sleep. Many of us are doing exactly the same, perhaps out of ignorance. Please forward this mail/article to as many of your colleagues/friends as possible, especially those who might be short-changing their sleep. If we can save even one young life because of this email, I would be the happiest person on earth.





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