Of course, there is a difference between not even giving yourself a chance at a good night’s sleep – browsing Netflix until 2am, say – and having a restless night. These are regularity, satisfaction with sleep, alertness during waking hours, timing of sleep, sleep efficiency and sleep duration.” “One useful definition of overall sleep health is the RU-Sated framework, which assesses six key dimensions of sleep that have been consistently associated with health outcomes. Chronic insomnia occurs when you spend three months or more without regular sleep, and that is when I would start to be concerned. “That’s what we would describe as transient insomnia. “A random day once in a while isn’t anything to worry about,” says Dr Marie-Pierre St-Onge, director of Columbia University’s Center of Excellence for Sleep and Circadian Research. “That may take years to manifest, even if they appear to be high-functioning on a day-to-day basis.”īut when does this start to become a problem? After all, plenty of people have the odd work sprint – or a baby – and go for days, or sometimes months, without getting their regular hours in. “I would start to get concerned with consistently sleeping less than seven hours a night, and really concerned if it dropped to six or below.”Īs for the Donald Trumps and Margaret Thatchers of the world, proudly claiming that they were torching the midnight oil to fit all their responsibilities in, it’s not good news: “Based on multiple empirical studies, even those that get four hours of sleep are likely causing cardiovascular and metabolic damage to the body,” says Carter. “Some people can get away with as little as six hours a night, or might need as much as 10, but those are generally extreme cases,” says Jason Carter, dean of Baylor University’s Robbins College of Health and Human Sciences. To start with the basics: if you are getting anywhere from seven to nine hours a night, you’re probably fine. But sleep sits right in the middle: even if you feel as if you are giving yourself enough, are you really? Is it the right sort? And then, of course, there’s always the worry that the worrying itself is a problem – by stressing yourself out about shut-eye, are you making things worse?įirst, take a deep breath. Most things you either can directly control (your booze intake, Twitter consumption, exercise regime) or you can’t (pollution, bees dying, malevolent artificial intelligence). It’s up to you.Of all the things to worry about in life, sleep may be the most pernicious. Or, if you want to go one step further, you can visit the Guolizhuang Restaurant, in Beijing, which specializes in penis and testicle dishes. You can never stop, you can never catch up, you can always get a new one, a better one.” The museum was started up by Sigurður Hjartarson, whose interest began when he was given a bull’s penis as a boy.Īccording to Hjartarson: “Collecting penises is like collecting anything. If this list has tickled your fancy, your next move might be to plan a trip to Iceland and visit the Icelandic Phallological Museum, which is dedicated to all things penile. And just in case there was any doubt, it doesn’t make you go blind, either. Thankfully, nowadays, food manufacturers spend less time trying to convince the youth to give up masturbation. He invented cornflakes and other products because he thought that plain foods would lead Americans away from the “sin” of masturbation. John Harvey Kellogg, the breakfast cereal mastermind, hoped that they would. If it is difficult to have or maintain an erection while awake, but not during sleep, this can point to an underlying psychological cause, rather than a physical one. Whatever the reason behind nocturnal erections, they can be useful as a diagnostic tool. So, by reducing the inhibition, the penis becomes erect. These cells inhibit the tone of the penis. However, because people with vaginas experience something similar - nocturnal clitoral tumescence - bed wetting prevention is probably not the entire answer.Īnother potential explanation is that REM sleep is linked with switching off cells that produce noradrenaline in the locus coeruleus, which is in the brainstem. One theory is that it might help prevent bed wetting: An erection inhibits urination.Ī full bladder is known to stimulate nerves in a similar region to those involved in erections. This is also called “nocturnal penile tumescence,” and it’s still not clear why it happens. Most people with penises have 3–5 erections every night, mostly during REM sleep.
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