I've always preferred to wear my Oura ring on my ring finger, but the company recommends using your index finger for the best results. Does it really matter? I compared the data myself, and asked ...

There are also people whose ring finger and second digits are the same length. This latest study looked at 258 student participants – 169 of them female – to see what their finger ratios were ...

The Ultrahuman Ring AIR is packed with impressive features, but the avalanche of numbers won't be for everyone ...