Finger Length Ratio
Palm readers believe the future is written in your hands, but some scientists believe the relative length of your fingers says a lot more about you — and your genetics. What your genes say about it?
Why do scientists study our hands?
If finger length ratio is linked to fetal hormone exposure and stays constant throughout the lifetime, it could be used as an indicator of the conditions a person was exposed to in the womb during pregnancy. Some scientists gather finger length information from adults to study how conditions in the womb may have influenced things like their health and behavior later in life.