Lack of Sleep Puts You At Higher Risk For Colds, First Experimental Study Finds
sciencehabit writes: Moms and sleep researchers alike have stressed the importance of solid shuteye for years, especially when it comes to fighting off the common cold. Their stance is a sensible one—skimping on sleep weakens the body's natural defense system, leaving it more vulnerable to viruses. But the connection relied largely on self-reported, subjective surveys—until now (abstract). For the first time, a team of scientists reports that they have locked down the link experimentally, showing that sleep-deprived individuals are more than four times more likely to catch a cold than those who are well-rested.
Knowing it in principle and knowing when to put that knowledge to work are two different things.
I used to catch *everything* that was going around, including some things most other people didn't. I got sick three, maybe four times a year. I always put it down to having a lousy immune system, until in one checkup I mentioned to my doctor that I'm a pretty loud snorer. "Better have you checked for sleep apnea," he said, and sure enough I had it, although only a relatively mild case. He prescribed sleeping on a CPAP machine, and since I've been doing that I almost never get sick. Maybe once in four years.
Anecdotal evidence, I know, but my point is this. Now that there's research demonstrating the impact of sleep on immune system performance it makes sense to make questions about sleep quantity and quality a routine part of health surveillance. I just happened to mention snoring to my doctor on one visit; if I'd been asked twenty years earlier it would have saved my employers a lot of sick time and me a lot of misery.
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Interested people might want to go read up on melatonin: how it is produced most effectively, and what its effects are on health. Obviously, it is an area that still requires a lot of study to be conclusive, but I suspect that this hormone plays a large part in the effect demonstrated in this study.
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