BBC Horizon just did a piece which talks about this topic [1]. The gist of it was that the hygiene hypothesis probably isn't correct, but it is close. Rather it

BBC Horizon just did a piece which talks about this topic [1]. The gist of it was that the hygiene hypothesis probably isn't correct, but it is close. Rather it is the diversity and makeup of the microbiome in our body that plays an important role in our immune system and hygiene, among other things, plays a role in shaping our microbiome. Pretty interesting I think. If it really is the microbiome, then maybe we can do something about it. 1. https://www.youtube.com/watch?v=6Y4ofojAe-k https://www.youtube.com/watch?v=6Y4ofojAe-k