Monday, July 22, 2013

Big Families

They're good for everyone. From The Telegraph:
So, with the help of Swedish researcher Therese Wallin, I set about pulling together data that put a different cost/benefit complexion on the “shall we have another?” conversation.

Some of the most startling literature comes from medical research. It has long been known that siblings – by sharing germs at a young age and mutually priming immune systems – provide some protection against atopic conditions such as hay fever and eczema. But the latest breakthroughs suggest growing up with a brother or sister can also guard against food allergies, multiple sclerosis and some cancers. For reasons that have yet to be fully fathomed, these benefits do not apply to children simply by dint of spending time sharing bugs with other youngsters – as they would, for instance, in day care.

The other “epidemics” of modern childhood, obesity and depression, are also potentially reduced by exposure to siblings. A clutch of major studies from all over the world shows that the more siblings a child has, the thinner they will be. Put simply, siblings help children burn off fat. One American study honed its analysis down to an amazingly precise deduction: with each extra brother or sister, a child will be, on average, 14 per cent less obese. Reductio ad absurdum? We can scoff at such a definitive conclusion, until we realise that no one in medical academia has suggested that having a sibling ever made anyone fatter.
None of this is rocket science. When we compare like with like, regardless of family background, children with siblings tend to enjoy better mental health. Obviously, again, this is to generalise massively. The world is full of jolly singletons. But dig into some of the big data sets out there and unignorable patterns emerge. On experiences on which nation states hold a big corpus of statistics, events such as divorce and death, for example, strong correlations exist.

Cause is not always correlation, but it stands to reason that when parents split up or die, a child will benefit from having a sibling to turn to.That solidarity runs throughout the lifespan. After all, a sibling is for life, not just for childhood....

And what of my own children? How do they feel, providing the material for a sibling laboratory? The eldest, just 14, has already announced that, should she have children, their numbers will be limited.

My wife and I started out similarly sceptical about fecundity. But, having struggled to have a second child, it was hard to shake the mindset that a pregnancy was anything other than a blessing. As our family expanded, necessitating bigger cars and fewer holidays, we took to heart the views attributed to Elizabeth Longford, the historian and Roman Catholic mother-of-eight. Asked why so many, she said that since her children were so different, curiosity drove her to find the limits of genetic diversity.

We find that a big family has unleashed the inner anthropologist in us, too. Some friends flinch at the managed chaos of our home, but my wife and I love the abundance of human interaction. We are the directors of our own daily soap opera. (Read more.)
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