Causes of fatness

I had already read articles showing that, while diet and exercise are most important (in that order), other things also have an effect on weight gain. They include lack of sleep (the next most important), temperature (apparently shivering burns calories), stress and medication/chemicals. But last year's New Scientist that I just borrowed from the library (December 2011, No2844/2845 Australia) had a couple I hadn't heard before.  

One is pollution. Rats had 50% more abdominal fat after 10 weeks of being subjected to polluted air than rats on the same diet living in clean air. It can also "make your cells less sensitive to insulin, increasing your risk of type 2 diabetes." (p64) The link for diabetes has also been shown in humans. Nasty.

More startling is that the common cold virus, or at least one incarnation of it, has a strong link to obesity. Adenovirus-36 (Ad-36) increases both the number of fat cells and their size, and the effect lasts for years. One study claims "children with Ad-36 antibodies weighed an average of 23 kilograms more than children without them." (p63) And another 10 microbes have a fat-increasing effect. One researcher hoped that this means we can do something about obesity.

Maybe I don't have big bones. Maybe I have the fat virus.

Passionfruit parfait

Donkey talks about parfait on Shrek when Shrek says he is like an onion (with layers) -- apparently everyone loves parfait. I wasn't really certain what it was, other than a desserty thing. But today I made some. It involved sieving the seeds out of passionfruit (which is mainly seeds), whisking yolks over heat without ending up with scrambled eggs, making sugar syrup and adding it to other ingredients without getting little lumps of boiled lolly as it cools, 3 saucepans and 2 sets of beaters. The end result tastes, rather pleasantly, like passionfruit folded through whipped cream. I could have folded passionfruit through whipped cream with a lot less time, trouble, and dirty saucepans. And egg all over the floor when I dropped the whisk (twice).

So I'd be happy to order this in a restaurant, but I won't be making it again in a hurry.

The speed of bees

According to a quirky snippet of info printed on the wrapping of this morning's sanitary product, bees fly at an average of 15 miles per hour. I don't particularly put my faith in this, some of the other "facts" have been highly suspect. But it could be true.

Termites

Termites are descended from cockroaches. Yuck.

Hawaii

The Muppet Show, a great source of information, had a sequence on Vets Hospital with a patient (a pig) from Hawaii. A joke revolved around the fact that Hawaii used to be called (by Europeans, presumably, not the natives) the Sandwich Islands. I didn't know that. The Muppets are always teaching me something new.

Dunnock

Another blogger (in England) mentioned seeing a dunnock when she was collecting her morning milk from the doorstep. I had no idea what a dunnock was, so I looked it up -- it is a small bird. I don't think we have them in Australia. But there you go.

Cell regeneration

Received wisdom is that every cell in the body is replaced every seven years, but according to COSMOS magazine it varies by body part. 2-3 days for the lining of the small intestine, 7 days for the outer layer of the cornea (and apparently the rest of the eye doesn't regenerate at all), 180-400 days for the liver, 10 years for the brain, 15 years for muscles. The heart only regenerates about 1% of its cells each year in a young adult and less as you age.