Why the chubs?

My last post dealt with the thorny issue of obesity, both it’s increasing presence in our everyday lives, and what for me is the underlying reason behind the stats that back up media scare stories concerning ‘the obesity epidemic’- the rise in size of the ‘average’ person over the last few decades. The precise causes of this trend can be put down to a whole host of societal factors within our modern age, but that story is boring as hell and has been repeated countless times by commenters far more adept in this field than me. Instead, today I wish present the case for modern-day obesity as a problem concerning the fundamental biology of a human being.

We, and our dim and distant ancestors of the scaly/furry variety, have spent the last few million years living wild; hunting, fighting and generally acting much like any other evolutionary pathway. Thus, we can learn a lot about our own inbuilt biology and instincts by studying the behaviour of animals currently alive today, and when we do so, several interesting animal eating habits become apparent. As anyone who has tried it as a child can attest (and I speak from personal experience), grass is not good stuff to eat. It’s tough, it takes a lot of chewing and processing (many herbivores have multiple stomachs to make sure they squeeze the maximum nutritional value out of their food), and there really isn’t much of it to power a fully-functional being. As such, grazers on grass and other such tough plant matter (such as leaves) will spend most of their lives doing nothing but guzzle the stuff, trying to get as much as possible through their system. Other animals will favour food with a higher nutritional content, such as fruits, tubers or, in many cases, meat, but these frequently present issues. Fruits are highly seasonal and rarely available in a large enough volume to support a large population, as well as being quite hard to get a lot of down; plants try to ‘design’ fruits so that each visitor takes only a few at a time, so as best to spread their seeds far and wide, and as such there are few animals that can sustain themselves on such a diet.  Other food such as tubers or nuts are hard to get at, needing to be dug up or broken in highly energy-consuming activities, whilst meat has the annoying habit of running away or fighting back whenever you try to get at it. As anyone who watches nature documentaries will attest, most large predators will only eat once every few days (admittedly rather heavily).

The unifying factor of all of this is that food is, in the wild, highly energy- and time-consuming to get hold of and consume, since every source of it guards its prize jealously. Therefore, any animal that wants to survive in this tough world must be near-constantly in pursuit of food simply to fulfil all of its life functions, and this is characterised by being perpetually hungry. Hunger is a body’s way of telling us that we should get more food, and in the wild this constant desire for more is kept in check by the difficulty that getting hold of it entails. Similarly, animal bodies try to assuage this desire by being lazy; if something isn’t necessary, then there’s no point wasting valuable energy going after it (since this will mean spending more time going after food to replace lost energy.)

However, in recent history (and a spectacularly short period of time from evolution’s point of view), one particular species called homo sapiens came up with this great idea called civilisation, which basically entailed the pooling and sharing of skill and resources in order to best benefit everyone as a whole. As an evolutionary success story, this is right up there with developing multicellular body structures in terms of being awesome, and it has enabled us humans to live far more comfortable lives than our ancestors did, with correspondingly far greater access to food. This has proved particularly true over the last two centuries, as technological advances in a more democratic society have improved the everyman’s access to food and comfortable living to a truly astounding degree. Unfortunately (from the point of view of our waistline) the instincts of our bodies haven’t quite caught up to the idea that when we want/need food, we can just get food, without all that inconvenient running around after it to get in the way. Not only that, but a lack of pack hierarchy combined with this increased availability means that we can stock up on food until we have eaten our absolute fill if so we wish; the difference between ‘satiated’ and ‘stuffed’ can work out as well over 1000 calories per meal, and over a long period of time it only takes a little more than we should be having every day to start packing on the pounds. Combine that with our natural predilection to laziness meaning that we don’t naturally think of going out for some exercise as fun purely for its own sake, and the fact that we no longer burn calories chasing our food, or in the muscles we build up from said chasing, and we find ourselves consuming a lot more calories than we really should be.

Not only that, but during this time we have also got into the habit of spending a lot of time worrying over the taste and texture of our food. This means that, unlike our ancestors who were just fine with simply jumping on a squirrel and devouring the thing, we have to go through the whole rigmarole of getting stuff out of the fridge, spending two hours slaving away in a kitchen and attempting to cook something vaguely resembling tasty. This wait is not something out bodies enjoy very much, meaning we often turn to ‘quick fixes’ when in need of food; stuff like bread, pasta or ready meals. Whilst we all know how much crap goes into ready meals (which should, as a rule, never be bought by anyone who cares even in the slightest about their health; salt content of those things is insane) and other such ‘quick fixes’, fewer people are aware of the impact a high intake of whole grains can have on our bodies. Stuff like bread and rice only started being eaten by humans a few thousand years ago, as we discovered the benefits of farming and cooking, and whilst they are undoubtedly a good food source (and are very, very difficult to cut from one’s diet whilst still remaining healthy) our bodies have simply not had enough time, evolutionarily speaking, to get used to them. This means they have a tendency to not make us feel as full as their calorie content should suggest, thus meaning that we eat more than our body in fact needs (if you want to feel full whilst not taking in so many calories, protein is the way to go; meat, fish and dairy are great for this).

This is all rather academic, but what does it mean for you if you want to lose a bit of weight? I am no expert on this, but then again neither are most of the people acting as self-proclaimed nutritionists in the general media, and anyway, I don’t have any better ideas for posts. So, look at my next post for my, admittedly basic, advice for anyone trying to make themselves that little bit healthier, especially if you’re trying to work of a few of the pounds built up over this festive season.


Socially Acceptable Druggies

Alcohol is, without a shadow of a doubt, our society’s commonly acceptable drug of choice; no matter that one third of people admit to smoking cannabis at some point in their lives, or that smoking kills tens of thousands more people every year, neither can touch alcohol for its prevalence and importance within western civilisation. It’s everywhere; for most polite social gatherings it is fundamentally necessary as an icebreaker, every settlement from the biggest city to the tiniest hamlet will have a bar, pub or other drinking venue and many people will collect veritable hoards of the stuff, sometimes even in purpose-built rooms.

Which, on the face of it, might seem odd given how much it screws around with you. Even before the damage it causes to one’s liver and internal organs was discovered, it had been known for centuries that alcohol was dangerously habit-forming stuff, and it was generally acknowledged that prolonged use ‘pickled’ the brain. It also leaves those who imbibe it severely confused and lacking in coordination, which has proved hideously dangerous in countless scenarios over the years (even contributing to several assassinations), and can be almost guaranteed to result in personal embarrassment and other decisions you’re really going to regret when sober. If it wasn’t for booze’s noted enhancing of promiscuity, it might be surprising that drinking hadn’t been bred out of us simply thanks to natural selection, so much does it generally screw around with our ability to function as proper human beings

Like many drugs, alcohol has its roots in the dim and distant past when it felt quite nice and we didn’t know any better; a natural product when sugar (usually in the form of fruit) comes into contact with yeast (a common, naturally occurring fungus), it was quickly discovered how to make this process happen efficiently and controlledly by putting both sugar and yeast under water (or in some other anaerobic atmosphere). All raw materials were easy to come by and the process didn’t require any special skill, so it was only natural that it should catch on. Especially when we consider that alcohol is generally considered to be the single best way of making the world feel like a less crappy place than it often appears.

However, the real secret to alcohol’s success in worming its way into our society is less linked to booze itself, and has more to do with water. From our earliest infancy as a species, water has been readily available in the world around us, whether it be from lakes, rivers, wells or wherever. Unfortunately, this means it is also available for lots of other things to use and make their homes in, including a vast array of nasty bacteria. As can be seen with the situation across swathes of Africa and the Third World (although this problem has been reduced quite significantly over the last decade or so), access to water that is not fetid, disgusting and dangerous can be nigh-on impossible for many, forcing them to settle for water containing diseases ranging from cholera to dysentery. And that’s where alcohol came in.

The great advantage of alcohol is that its production can be very carefully controlled; even if the majority of an alcoholic drink is water, this is generally a product of the fruit or other sugary substance used in the brewing process. This means it is a lot purer than most ‘fresh’ water, and in any case the alcohol present in the fluid kills off a lot of bacteria. Even for those that can survive that, alcoholic beverages are far more likely to be bottled (or at least they were, before someone discovered the sheer quantity of suckers willing to buy what you can get out of the tap) than water, keeping any more invading bacteria, parasites, insects and other crap out. All of this was, of course, not known before Louis Pasteur first came along with his Germ Theory, but the facts stayed the same; historically, you were far less likely to die from drinking alcohol than drinking water.

Still, come the 20th century most of our sanitation problems in the developed world were sorted, so we didn’t need to worry about all that any more did we? Surely, we would have been fine to get rid of booze from our culture, throw out a feature of our lives that ruins many a night out, body or family? Surely, we’d all be far better off without alcohol in our culture? Wouldn’t we?

In many cases, this kind of question would prove a purely theoretical one, to be discussed by leading thinkers; however, much to the delight of all champions of evidence over opinion, the USA were kind enough to give banning alcohol a go way back in the early days of the 20th century. A hundred years ago, campaigns from the likes of the church and the Anti Saloon Bar League painted alcohol as a decidedly destructive influence, so successfully that from 1920 to 1933 the sale, production and consumption of alcohol within the United States became illegal.

At the time, many people thought this was a brilliant idea that would yield great social change. They were right; society as a collective decided that the law was more like a guideline anyway, and through their lot in with the mob. This was the golden age of organised crime, the era of Al Capone and others making fortunes in dealing bootleg alcohol, either dangerous home-brewed ‘moonshine’ liquor or stuff smuggled across the Canadian border. Hundreds of illegal speakeasies, clubs whose drab outsides hid their gaudy interiors, and in which were housed illegal gambling nests, dancers, prostitutes and a hell of a lot of booze, sprung up in every major American city, and while the data is inconsistent some figures suggest alcohol consumption actually rose during the Prohibition era (as it was known). Next to nobody was ever imprisoned or even charged with their crimes however, because the now-wealthy mob could afford to bribe almost anyone, and in any case most police officers and legal officials were illicit drinkers themselves; even Al Capone wasn’t taken down until after he was suspected of ordering some rival gangsters gunned down in what became known as the St Valentine’s Day Massacre. Eventually a group of supremely dedicated policement known unofficially as ‘The Untouchables’ managed to pin tax evasion charges on him, and even had to switch a bribed jury to ensure he went down (a film, The Untouchables, was made about the story- give it a watch if you ever get the charge). By the time Franklin D. Roosevelt repealed prohibition upon coming to power in 1933, the message was clear: America loved alcohol too much, and it wasn’t about to let it go.

Alcohol is, in its effect at least, not a special drug; many others can be used to forget the bad times, enjoy the good times and make the world feel like a better place. But there’s something about, something about its cultural imagery, that makes it timeless, and makes it an immovable feature of our world. It could be that it’s probably the cheapest recreational drug, or maybe that it’s the oldest, but to me the real secret to its success is its weakness, combined with the way it is almost always served very dilute. Most illegal drugs give an instant hit, a huge rush followed by crashing downer, and this makes any use of it a brief, wild experience. Alcohol is more mellow; something you can spend an entire night slowly drowning your sorrows in, or casually imbibe whilst chatting and generally functioning like a normal human being. It’s slow, it’s casual, a feature of an evening that does not necessarily have to define it- that is the cultural secret to alcohol’s success.