Ritzy Cafe, Brixton

Listening to some people on the other side of the cafe talking about cycling: cyclists breathe in less pollution than car passengers apparently, according to a woman who sounds like she knows what she’s talking about, though often the people who sound like they know what they’re talking about are the ones who don’t. It’s because of the height, she says. Cyclists are higher up, unless they’re children or recumbants, so the air they take in is better quality, whereas cars take in air from lower down which is where the pollution hangs.