Adam Ruins Everything washes out a seemingly harmless piece of advice: drinking 2L or eight glasses of water a day. It turns out no study has conclusively proven that standard. So why are we often told to stay hydrated? Because money.
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Veritasium breaks down the most requested cosmetic procedure. The melanin in our hair (and skin) protect us by absorbing light. Laser hair removal takes advantage of that by overloading hair with short bursts of heat, enough to damage the cells that produce hair.
The so-called war on drugs is about short term gains and check marks for politicians. It goes after suppliers, but drugs are addictive. Users are willing to pay high prices for drugs, which encourages suppliers. The solution is to alleviate the demand for these substances.