Scientist’s new research have found that finger length may determine COVID risk. It is recognized widely that length of your digits is influenced by the exposure to the testosterone while in womb, studies has also and studies have also connected this ratio to a host of other qualities, from personality traits and food preferences. The question arises could it be linked to risk of COVID, too?
Scientists wanted to explore the link with the men shown to die from COVID at higher rates than women during the pandemic.
Researchers from Swansea University compared the fingers of 54 people who had been hospitalized with COVID with 100 healthy people who never had this bug.
Digit ratios were measured and that is the difference in length between the 2nd (index finger), 3rd (middle finger), 4th (ring finger) and 5th (pinky finger) digits and then some key differences were spotted.
Feminized patients with short little fingers relative to their other digits tend to experience severe Covid-19 symptoms.
Hence it was not clear from paper what constitutes a short fifth finger, as every person hand size is different. A short pinky, on the other hand, is one that does not reach the ring finger’s top joint.
“‘Feminized’ disparities in digit ratios in hospitalized patients supports the hypothesis that individuals who have experienced low testosterone and/or high estrogen are prone to severe expression of Covid-19,” stated Prof John Manning, the lead researcher.
“This could explain why senior males are the most vulnerable.”
Patients with considerable right-to-left hand disparities in the ratios 2D:4D and 3D:5D are at the highest risk of COVID hospitalization.
“Our data imply that the severity of Covid-19 is connected to low testosterone and perhaps high estrogen in both men and women,” Prof Manning said. This is essential because pinpointing who is more likely to be susceptible to severe Covid-19 would help with vaccination targeting.”
Age, gender, and underlying health conditions are the biggest predictors of COVID severity.
Previously, persons with a lengthy ring finger were discovered to have higher testosterone levels prenatally than those with a long index (pointing) finger.
Longer ring fingers are more common in men, while longer index fingers are more common in women, indicating increased estrogen exposure.
Prof Manning theorized that men who defied the trend were more likely to contract COVID because their prenatal testosterone levels were lower.
The hormone may cause the body to manufacture more of a substance called ACE2, which aids in the fight against the virus.
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