A new study revealed how hand shape can be identified via measurements on 3 hand dimensions, including: finger length, palm width & palm length.

The study points out that each of the so-called ‘elemental hand shapes’ (earth hand shape, fire hand shape, air hand shape, and water hand shape) can be recognized by it’s proportions relative to each other.

The picture above demonstrates how your hand shape can be identified via the ‘hand shape profile’ – which concerns a code with three elements involved, where the combination reveals the (elemental) hand shape type.

More details are discussed in the article: 

Finger length proportions & elemental hand shapes!


Hand projections demonstrate how anorexia works

[tweetmeme source=”handresearch” only_single=false] Scientists at University College London asked people to put their left hands palm down under a board and judge the location of the covered hand’s knuckles and fingertips with a pointer. The results pointed out that people tend to think that their hands are wider and their fingers are shorter than they truly are. Lead researcher Dr Matthew Longo recognized how the findings may well be relevant to psychiatric conditions involving body image such as anorexia nervosa.

Susan Ringwood, chief executive of the eating disorders charity Beat, said:

“We know that one of the features of anorexia nervosa can be distorted body image. People affected can truly believe that they are grossly fat, even when they are dangerously underweight. They are able to judge other people’s bodies quite accurately and would describe someone else the same size as themselves correctly, but still not be able to do that about their own weight and shape.”

“This brain study may give some insight into how this could be possible, and could be very motivating for people with eating disorders to know that there was a biological explanation for their experiences, rather than feeling it was their fault.”

Obviously, the brain tends to make body image projections that are wider and shorter than the body (hand) really is. And women are typically known for experiencing more problems in visuo-spatial tasks!  

But there’s more known about how hands relate to anorexia… 



But there is another connection between anorexia nervosa and the hand:  it’s in the length of the fingers! 

High 2d:4d digit ratio (the typically female-like finger length variant) has been associated with low levels of prental testosterone exposure AND high levels of eating disordered behaviors. Michael D. Anestis reports:

“Drive for thinness was lower in men with a lower 2D:4D ratio and drive for muscularity was higher in men with a lower 2D:4D ratio. …A lower 2D:4D ratio also predicted lower levels of eating disordered behaviors in men. …So, what do these findings tell us?  First of all, it appears that, for men as with women, a greater level of prenatal testosterone is associated with less of a drive to be thin and lower levels of eating disordered behaviors.  Additionally, a greater level of prenatal testosterone exposure appears to predict a greater drive to develop a muscular physique.” 

So, next to the brain-created body image distortions – prenatal testosterone is also involved in anorexia nervosa related eating disorders.

Please feel free to share your thoughts…             


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British researchers linked weather with fingernail quality!

Learning fingernail manicure is helpfull, but the weather will shape your fingernails!

New fingernail research has pointed out that the weather is an important factor in the quality of our fingernails. British researchers found that a humidity of 55% will lead to strong, lengthy nails.

While a lower humidity will make you fingernails more brittle; a higher humidity will make your fingernails more bendy!

Researcher Dr Stephen Eichhorn said:

“We have found that fingernails cope remarkably well over a range of humidities – but it is best not to get them completely dry or wet. At an average of 55pc humidity, which is what you would experience normally, it appears nails have their optimum mechanical properties, and resist bending.”

“The mechanical properties of fingernails are important because of their impact in preventing damage and in maintaining their appearance. ‘In particular, knowing the effect of local environmental conditions can tell us how they might best be protected.”

The research team presented their work in a recent issue of The Journal of Biomechanics.

A humidity of 55% is a perfect weather for optimum fingernail growth.


The medical causes of brittle fingernails!
The use of fingernails as a bioindicator of heavy metals!
Find the cause of your fingernail disorders in 3 steps!