Thế thì...

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Picture a life not having to worry about how much hot water you're using up for a shower.

Taking things one step further - picture a life where you don't even need to bathe (tắm).

Such a life has been endorsed (xác nhận, tán thành) by a hygiene expert (chuyên gia vệ sinh) from London who has suggested that the only reason we shower is because it's 'socially acceptable'.

Professor Sally Bloomfield, of the London School of Hygiene and Tropical Medicine, told BBC Radio 5 Live Breakfast: "In my opinion we don't need to bath and shower every day.

"In fact, we don't need to bath and shower at all.

"There are microbes on our body that produce nasty (bẩn thỉu; dơ dáy; kinh tởm, làm buồn nôn) odours (mùi) but they're not harmful to us. And the reason we bath and shower is that we want to get rid of those odours and we want to feel comfortable.

"That's fine — but as far as preventing disease, it's really not important."

Bài trước: Vì sao ăn ít vẫn tăng cân?