A very high percentage of the world population doesn’t exercise enough and, as a consequence, is at high risk of developing serious health conditions. Physical inactivity paired with a poor diet is the second cause of death in high income countries. In this paper, I suggest that transcranial direct stimulation (tDCS) holds promise for “couch potatoes” because it could be used to make them more active, without causing any major side-effect. I also argue that other, less safe, tools could be used to achieve the goal of decreasing physical inactivity, insofar as they have overall fewer side-effects than physical inactivity.

中文翻译：

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应该鼓励沙发土豆使用经颅直流电刺激吗？

世界人口中有很高比例的人没有足够的运动，因此，处于发展严重健康状况的高风险。缺乏运动和不良饮食是高收入国家第二大死亡原因。在本文中，我建议经颅直接刺激（tDCS）对于“沙发土豆”有希望，因为它可以用来使它们更加活跃，而不会引起任何重大副作用。我还认为，可以使用其他较不安全的工具来实现减少身体不活动的目标，只要它们总体上比身体不活动具有更少的副作用。