Using Euro coins as weights (2004)

I'm using euro cents as weights in my weighted vest.

When I started doing this I didn't want to afford dedicated weights as it seemed like a waste of money, but I had many cents saved up from my childhood, which I started to use instead.

I have roughly 15kg in euro cents in my vest and I'm regularly talking walks with it.

To get one kilo you need 435 cents and it turns out that in Germany you can also "buy" coins "for free" at the "Bundesbank", that is, you can exchange actual money for weights without any fees. You give 4 euros and 35 cents and you get a kilo. Once you need the money back, you can also sell those coins back to them for free.

What's a weighted vest? Something for diving?

It's a way to increase the risk of injury to your knees and ankles and strain your back and shoulders while taking walks, and in general make walking more unpleasant.

Some people think it's an exercise 'life hack'.

The risk of injury while walking in a weighted vest is not much higher than walking normally. A very high weight of vest is probably ill advised, but walking on a very flat/regular surface for long periods is far more damaging than walking with a little extra weight. Weighted bracelets/limb weights are dangerous though, and shouldn't be used unless you know what you're doing and take care not to move too quickly and put excess strain on joints.

How much weight on a weighted arm band is considered dangerous? I'm considering 500 gram bands for my arms, that's just about twice the weight of a cellular phone today.

It depends on what you're doing, but 500g shouldn't be dangerous as long as you wear the weights tightly bound so they don't bounce or slide. What you want to watch out for are anything that overextends or puts pressure on the joints - those movements can cause damage even unweighted and having weights just makes the danger worse.