Snap etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster
Snap etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster

30 Nisan 2017 Pazar

Did walking help Theresa May decide on a snap election? | Daniel Glaser

It was during a walking holiday in Snowdonia, says Theresa May, after ‘long and hard’ reflection that she made the decision to call a June election. So much for walking and creative inspiration. But is there a connection between the two?


Neuroscience would say that depends on the difficulty of the task. Using a mathematical example, you can test this out for yourself. When you start with an easy challenge like counting in fives, fast walking isn’t a problem, but try multiplying 37 and 23 and you’ll find your feet slow down no matter how hard you try and keep up the pace.


We only struggle to walk and problem solve when the task is sufficiently difficult (if deciding on an election was a no-brainer for May, it’s unlikely her walking pace suffered). Various theories have been advanced to explain the finding, but really it’s down to attention being a limited resource in the brain. It’s not as good at multitasking as you’d expect. In May’s case, it could even be that the opposite was happening; the effort required to maintain a steady walking pace distracted her from the everyday preoccupations of running the country, enabling her to hatch a fiendish plot to steal a march on the opposition.


Dr Daniel Glaser is director of Science Gallery at King’s College London



Did walking help Theresa May decide on a snap election? | Daniel Glaser

4 Haziran 2014 Çarşamba

Snap, Crackle, And Pop Goes The Traditional Wisdom About Breakfast And Weight Loss

Yet another dietary conviction, born of observational studies and significantly standard wisdom, has been routed in a randomized manage trial. The belief that skipping breakfast is negative for you if you want to shed fat doesn’t hold up when subjected to a more rigorous examine style, according to a a lot more rigorously designed study—“The effectiveness of breakfast recommendations on fat loss: a randomized controlled trial,” published in the American Journal of Clinical Nutrition.


“We believed it was essential to check this typically held assumption,” stated lead writer Emily Dhurandhar by e-mail, “since short-phrase scientific studies propose that consuming breakfast could assist regulate appetite and metabolism, it has usually been assumed that this would translate to breakfast improving weight loss.”


The moral of the research: by no means assume.


Previously, only one particular randomized management trial published in 1992–Schlundt et al.—had investigated the affect of skipping versus eating breakfast amongst individuals in search of to shed bodyweight. It discovered that the act of switching from breakfast to no breakfast or vice versa appeared to be driving excess weight loss compared to not changing breakfast habits and the a lot more radical the alter in behavior at breakfast time, the higher the bodyweight loss. This examine was extensively reported in the scientific literature as getting proven that consuming breakfast led to bodyweight reduction, even though that is not what the authors concluded. Because Dhurandhar et al. used a significantly bigger sample—they enrolled 309 topics compared to 52 in the earlier research, they have been in a position to do a better occupation of controlling for the results of switching.


Between these folks who were breakfast skippers when they started out the system, the handle group (people who have been advised only “eat healthy” and offered a US Division of Agriculture pamphlet, but not provided any instructions on eating or not eating breakfast) lost an common of .71 kg but the standard deviation was one.16 kg. This implies that about 68 percent of this group experienced anything at all from a excess weight reduction of 1.87 kg (.71+one.16kg), to a excess weight gain of .61 kg (.71 minus 1.16kg).


Similarly, if you were a breakfast skipper assigned to the group that was advised to eat breakfast, you lost .76 kg on regular, but the standard deviation was one.26, so about two-thirds of men and women lost somewhere between 2.02 kg (76+one.26kg) or acquired .50kg (one.26 minus .76kg).


Ultimately, those breakfast skippers who have been informed not to eat breakfast misplaced on average .61kg, but two-thirds of them misplaced as much as one.79kg (.61+one.18kg) or acquired as small as .57kg (one.18 minus .61kg)–or accomplished one thing in between.



An English breakfast

An English breakfast (Photo credit: Wikipedia)




People who have been breakfast eaters had been cast in similar groupings, with the same results: you see no result of getting a breakfast eater and not being informed anything about breakfast (the control group), compared with the getting informed to eat breakfast group and the getting told not to consume breakfast group.


As Dhurandhar put it, their study was all about timing: to consume or not to eat breakfast “didn’t influence weight reduction in free of charge-residing folks making an attempt to drop bodyweight on their personal.” But, she additional, that doesn’t suggest that certain breakfast food items or consuming a big breakfast wouldn’t be useful for other causes. The next step would be to repeat the experiment hunting at effects on metabolic variables over a longer time period of time relative to certain meals, one thing that would be high-priced to do, but could yield essential insights into regardless of whether all breakfast foods are equal, or whether or not there might be other far more subtle alterations associated to skipping or not that are only revealed in excess of a significantly longer duration. 1 may well say, the “most crucial meal of the day”(sic) deserves nothing much less.



Snap, Crackle, And Pop Goes The Traditional Wisdom About Breakfast And Weight Loss