An interesting article on the prognosis of individuals who catch Covid, based on finger length.
You have to hand it to them - to find a link. They must have thumbed through a lot of data.
Here is the article:
https://www.medscape.co.uk/viewarticle/finger-lengths-and-risk-covid-19-hospitalisation-2022a1000t6gEssentially, the short version is that they looked at the ratio between the lengths of the fingers. The ratios give an indication of testosterone or oestrogen that was present as the body developed.
They appear to have found a link that is supported by the data. Looking at the ratio of the length of the index finger to the ring finger. The length of the little finger, and differences between the two hands.
Naturally there will be variations for individuals that will have a large bearing on outcome - so don't frighten yourself if you stare at your hands and start worrying.
Trystan