Look. If you are of a delicate disposition, best not take up swimming. Don’t venture down to your local pool, strip off your clothes, wade through a slightly wet and dirty changing room and immerse yourself into what is, effectively, a communal bath full of the hoi polloi and all their bodily fluids. Just don’t do it.

If you are of a delicate disposition, you won’t end up feeling relaxed, with a sense of wellbeing and a healthy glow. You’ll be too concerned about verrucas, or cross and suffering from “lane rage”. You’ll complain about everything from people peeing in the water – which scientists have found is a frequent occurrence – to the quantity of the pool chemicals needed to counteract the peeing, to the water being too cold (or too hot).

You’ll be unhappy about the plasters and miscellaneous hairs that have sunk to the bottom of the pool. You’ll be irritated by the kids screaming and about swimmers splashing arrogantly; or women slowly breaststroking in twos and chatting while still in full makeup. You’ll feel as if your swim has been ruined.

I’ve swum in many pools – probably more than 100 – and I can tell you that every one has its fair share of annoyances. And they all, undoubtedly, have users who pee in the water. Every pool in the UK (where, for some reason, we don’t require swimmers to wear bathing caps) has great billowing clouds of hair floating around waiting to get caught repulsively between your fingers.

Many pools aren’t as clean as we’d like, but public pools are often underfunded. The staff who work at these places are often poorly paid and on casual shifts. The lifeguards who keep order, and whom we trust to save our lives, if necessary, are often required to do most of the cleaning, and to regulate the chemicals and temperatures of the water. Cut them some slack.

In most pools, just as there are cleanliness issues, there are people issues too. Every leisure centre has a weirdo who spends too much time in the shower. Every swim features a strange encounter with a near-naked stranger.

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But I don’t get exercised. I don’t complain to the lifeguards. It’s not my pool, I think. It’s there for us all to share. Live and let live. Your swim is just as valid as my swim. I embrace your chattering, your free-diving, your breaststroke screw-kick and your bikinis. I embrace the floating plasters and the overwhelming smell of chlorine. And if your kid (or you) have peed in the water, I don’t really care about that either.

But if the thought of urine, sweat and snot (and worse) appals you, and if you don’t want to swim too close to someone who is almost naked and cooperate with them, then do yourself – and me – a favour. Walk up a deserted mountain instead.

Read The Guardian

Every type of exercise has its selling points. But swimming is unlike any other aerobic workout in a few important ways.

First, the fact that you’re submerged in water means your bones and muscles are somewhat unshackled from the constraints of gravity, says Hirofumi Tanaka, a professor of kinesiology and director of the Cardiovascular Aging Research Lab at the University of Texas.

This makes swimming the ideal exercise for people with osteoarthritis, for whom weight-bearing exercise can be excruciatingly painful. According to Tanaka’s research of people with the condition, swimming decreases arterial stiffness, a risk factor for heart trouble. More of his research has linked swim training with lower blood pressure among people with hypertension. The coolness and buoyancy of water are also appealing to people who are overweight or obese, for whom load-bearing aerobic exercises like running may be too hot or uncomfortable, Tanaka says.

But don’t be fooled; your body is working hard when you’re in the pool. Water is denser than air, so moving through H2O puts more external pressure on your limbs than out-of-water training, studies have shown. Even better, that pressure is uniformly distributed. It doesn’t collect in your knees, hips or the other places that bear most of the burden when you exercise with gravity sitting on your shoulders.

Read Time