The deluge of improbable health hacks on TikTok can only mean it’s the start of a new year. Here we look at some of the more curious tips and the evidence, where there is any, behind them. Putting rubber bands around your ears to reduce facial puffiness The South Korean fad of wrapping rubber bands around the ears for 10 minutes to reduce facial puffiness has gone global among TikTok users. Advocates claim the bands help move fluid around the lymphatic system, but there is no scientific evidence to support that. There is evidence that lymphatic massage, which uses gentle