Is palm reading real? What research shows about palm lines

“A short life line means a short life”: you have probably heard palm-reading lines like this one. mind.io’s palm reading page also looks at how long, clear and unbroken the life, heart, head and fate lines are in a photo of your palm and describes them in the language of traditional palmistry, but from the start it says that palm lines cannot tell your lifespan or destiny. So is there any scientific basis for a link between palm lines and personality or lifespan? This guide answers that question with research.

The short answer is that the direct studies we found do not support reading lifespan, personality or fate from palm lines. A 1990 British study did find that people with longer life lines had died at an older age, but it measured the hands of 100 people after death, so it could not rule out that creases simply lengthen with age, an explanation the authors raised themselves (Newrick et al., 1990). In a 1907 French experiment, a palm reader judged children’s intelligence from their hands a little better than chance, but the psychologist who ran it noted that she studied the shape of the fingers and palm and seemed to give the lines little weight (Binet, 1907). Why readings feel accurate has its own explanations: general statements that fit almost anyone, and techniques for reading a client’s reactions (Hyman, 1977). Palm lines themselves are real anatomy: creases where the skin folds when the hand bends, which form before birth (Park et al., 2010; MedlinePlus, 2025). There is also research on finger-length ratios, but in a large German study its links with depression and neuroticism were very small or unclear (Lautenbacher & Neyse, 2020), and a meta-analysis of many studies found only small links with aggressive and risky behaviour (from the abstract; Pratt et al., 2016).

This guide covers where palm reading came from and what it reads, what palm lines actually are, the study that checked life lines against lifespan and the experiment that tested a palm reader, why readings feel accurate, the research on finger length, and how to enjoy palm reading without taking it as fact. The research on reading personality from faces is in the guide to the science of face reading, and why a reading that fits everyone can feel personal is in the guide to the Barnum effect. The research on tarot card readings is in the tarot guide. mind.io does not offer a test that judges personality from your palm.

The idea that palm lines are linked to lifespan is very old. In his History of Animals, Aristotle wrote that the palm is divided by lines: in long-lived people by one or two that run right across it, in the short-lived by two that do not. In India, early accounts of palmistry appear in texts from the early centuries CE to the sixth and seventh centuries, and after the middle of the ninth century a chapter called “the lines on the hands” entered a Buddhist text. Indian palmistry usually read a man’s right hand and a woman’s left (Zysk, 2025).

According to the historian Alexandra Nagel, the oldest surviving European text devoted solely to the subject is a Latin treatise written in Canterbury, England, around 1160, which gave a meaning to the three “natural” lines that usually form a triangle on the palm and to other creases, mounts and marks. A book of 1522 brought palmistry, physiognomy and astrology together, and around that time palm readers began naming parts of the hand after the seven planets. In nineteenth-century France, Captain Casimir d’Arpentigny published a book in 1843 that read character from the shape of the hand, and Adolphe Desbarrolles, in an 1859 book, spread the practice of reading the shape of the hand first and the lines of the palm second (Nagel, 2021).

In Japan, according to the Encyclopedia Nipponica, a Chinese physiognomy compendium of the Ming dynasty became a widely used guide alongside the work of the Edo-period physiognomist Mizuno Nanboku, and since Western palmistry arrived in the Taishō era, Western methods have in some respects come to be used more (Yoshino, Nipponica).

Palm reading is not only about lines. The same encyclopedia entry describes looking at the type of hand, the length and shape of the fingers, the nails and the raised “mounts” of the palm before reading the lines last. Among the lines, the life line (health and life), the head line (intellect) and the heart line (feelings) are treated as the three main ones, while the fate line is said to show success and work and the sun line wealth and fame (Yoshino, Nipponica). The American anthropologist Michael Park found that palmistry systems differ in which features they read and what those mean, and that palm readers disagree among themselves about predicting the future: traditional books used the life line to estimate roughly when a person would die, while a modern palmistry author he quotes called predicting specific events the work of “charlatans” and offered only “direction and tendencies” (Park, 1983).

So what are palm lines? Anatomy treats them as flexion creases, where the skin folds when the hand bends. They lie where the skin is attached more firmly to the tissue underneath, and they deepen as you close your hand (Park, 1983). A Korean research team defined the main creases as the one that becomes distinct when the thumb joint bends (where palm readers place the life line) and the two transverse creases that become distinct when the knuckles bend (where they place the head and heart lines), and read their role as letting the skin of the palm fold (Park et al., 2010). These main creases are usually already there by around week 12 of pregnancy (MedlinePlus, 2025).

Their pattern varies quite a lot from person to person. A 2010 study analysed ink prints of both palms from 3,216 people aged 17 to 29 living in Suwon, South Korea. Counted by palm, the two transverse creases did not meet on 84.4%, while on 12.6% they met and ran across the palm, including palms where they joined through branches. This joined type was more common in men and in right hands. On 0.5% of palms the team found a new pattern, the two creases meeting with one extra crease beside them, and named it the “Suwon crease” (Park et al., 2010).

When the two transverse creases merge into one line, it is called a single palmar crease. Roughly one person in 30 has one, men about twice as often as women, and it is often normal. A doctor examining a newborn weighs it alongside other signs, the family and medical history and a physical examination, and does not diagnose anything from the crease alone (MedlinePlus, 2025). The anthropologist Park, who studied palm and finger patterns himself, explained that medical findings linking such patterns or creases with some conditions compare how often they occur in groups; such a crease is not by itself a sure sign of any particular condition. Palm readers interpret the same crease as a mark of “a strong inner tension”, and he noted that the medical findings and the palm readers’ meanings bear little resemblance to each other (Park, 1983).

Do palm lines stay the same for life? There is no clear answer yet. The authors of the 1990 study discussed below suggested that palm creases, like other wrinkles, may lengthen with age. A paediatric dermatologist wrote that the late Professor Penrose had said life lines may lengthen and become more complex with age, though his own main creases had not changed when he compared them with prints he took 20 years earlier (Newrick et al., 1990; Verbov, 1991). Among the sources we found, none followed the same people’s palm lines over many years.

One study that directly checked the idea that palm lines tell lifespan appeared in the Journal of the Royal Society of Medicine in 1990. A team at the Bristol Royal Infirmary in England measured the life line on both hands of 100 consecutive people at autopsy (63 men and 37 women). One person laid a piece of string along each line and measured it with a ruler to the nearest millimetre, placing the life line where the well-known palmist Cheiro defined it. To allow for hand size, the team also measured the longest course the line could run and calculated a ratio, and age at death was taken from hospital records after the lines had been measured (Newrick et al., 1990).

People with longer life lines had tended to die at an older age. The correlation between right-hand life line length and age at death was 0.39, and 0.55 for the right-hand ratio that allowed for hand size. But the authors themselves raised an important alternative: with age we all become more wrinkly, and the same may apply to palm creases. Because every hand was measured after death, age at death was also the age of the hand when it was measured. The study therefore could not tell “a long line led to a long life” from “a long life led to a long line”, and the authors added that sorting this out would need a comparison with living people or a study following people for 80 years (Newrick et al., 1990).

The authors closed this partly playful paper by calling for properly conducted prospective multicentre studies of the predictive value of life line length in various populations, while suggesting that “a new clinically useful prognostic indicator may be at hand” (Newrick et al., 1990). Letters of objection followed in the same journal. A paediatric dermatologist said he presumed the authors were writing “tongue (or hand) in cheek” and, citing Professor Penrose’s remark that life lines may lengthen with age, concluded that medicine is right to dismiss the idea that life line length predicts anything (Verbov, 1991). The secretary of the Cheirological Society, an organisation of palm readers, objected too: the sample was far too small, palm reading looks at a line’s form, location and markings as well as its length, and a correlation found in the dead says nothing about the living (Jones, 1991).

An experiment also put a palm reader to the test. Alfred Binet, director of the psychology laboratory at the Sorbonne in Paris, reported in a 1907 paper that he had taken Madame Fraya, a palm reader who volunteered to be tested, to two schools. Thirty children aged eight and a half to fourteen (15 girls and 15 boys) held out only their hands under a slightly raised curtain and did not speak. Half were among the best pupils in their schools; half were three to five years or more behind in their schooling. Of the 27 cases she judged firmly, Madame Fraya was right about 17 (63%), against 50% by chance. Binet wrote: “Decidedly, there is something true in palmistry. There is a relation between intelligence and the form of the hand” (Binet, 1907).

Even so, this result is hard to count as support for palm reading. Binet noted that Madame Fraya studied the shape of each finger and of the palm and seemed to give the lines little weight. She handled the children’s living hands, and the paper also passed on the remark that children with bitten nails may have been judged less favourably. There was one reader and 27 firm judgements. When, at Binet’s request, a teacher then showed photographs of 20 children’s hands to 20 other teachers, they guessed the child’s sex correctly 70.5% of the time, but intelligence only 54% of the time, barely above the 50% expected by chance. Taking the teachers’ majority view instead, and leaving out 3 photos on which they split evenly, the majority was right for 13 of the remaining 17 (76.5%). Binet called the gap large and read in it a sign of intelligence in the form of the hand, while calling his own explanation hypothetical. He added that the impression that long, slender fingers look intelligent had led some judgements to the right answer and others to the wrong one (Binet, 1907). It was an experiment on hand shape rather than palm lines, and on school ability rather than personality or fate.

In short, the direct studies we found were a study of life lines measured after death and an experiment on hand shape from 1907. We did not find a study that measured living people’s palm lines and followed their lifespan, or a recent controlled test of how well palm readers judge personality.

Why, then, do palm readings so often feel personal? General statements that fit almost anyone can feel like a description written just for you; this is the Barnum effect, covered in the guide to the Barnum effect. The psychologist Ray Hyman of the University of Oregon also described “cold reading”, which persuades a stranger that the reader knows all about them. In his account, a prop such as palmistry lets the reader stall while appearing to study a line, and holding the client’s hand helps the reader sense how they react to what is said. Simply asking whether to start with the heart line, the fate line or the head line quickly shows whether the client is worried about love, work and money, or personal problems. He also noted that a reading is accepted more readily when the reader seems confident and authoritative (Hyman, 1977).

Hyman told a story from his own life. As a teenager he began reading palms to add to his income from magic and mentalism shows; he did not believe in palmistry at first, but after a few years he had become a firm believer. Then a mentalist he respected suggested that he give some clients readings opposite to what the lines indicated, and to his surprise those readings went over just as well as ever (Hyman, 1977). It is a personal account involving a few clients, not a controlled experiment, but it shows how the sense that a reading fits may not come from the lines themselves.

Hands can also carry real information. The anthropologist Park pointed to scars, calluses and stains, writing that short nails and calluses on the fingertips of the left hand are a fairly good sign of a right-handed player of a stringed instrument (Park, 1983). Just as Binet’s teachers guessed children’s sex from photographs of their hands 70.5% of the time (Binet, 1907), the shape of a hand or a callus can hint at someone’s sex or what they do. When a reading hits, the clue may have come from marks like these rather than from the lines.

None of this means that people who nod along to a reading are foolish. Hyman wrote that meaning comes from the listener’s expectations, context and memory, and that clients who find meaning in such readings are not necessarily acting irrationally. The same ability to find meaning makes us open to these readings, and readers themselves often come to believe their readings too (Hyman, 1977). Park, too, called the comfort of having access to hidden knowledge “an understandable emotion” (Park, 1983).

Alongside palm lines, there are claims that finger length reveals personality. These are about the fingers, not the lines of the palm. Researchers have studied the ratio of index-finger length to ring-finger length (2D:4D) as a possible trace of the hormonal environment before birth. In a meta-analysis of 116 samples with 13,260 women and 11,789 men, the ratio was lower in men than in women on average, a moderate difference (from the abstract; Hönekopp & Watson, 2010). Whether the ratio really reflects hormones before birth, however, rests on limited evidence, as researchers in the field point out (Lautenbacher & Neyse, 2020).

What did a large study find? In 2018, 263 interviewers used digital calipers to measure the fingers of more than 3,000 adults in a nationally representative German panel survey. The ratio showed no clear link with having been diagnosed with depression. Weak links with neuroticism, the tendency to feel negative emotions easily, appeared in some analyses but were no longer statistically significant once age or the interviewer who measured was taken into account, and the researchers described the evidence on neuroticism as mixed. All the effects of the finger ratio were very small (standardised coefficients of 0.01 to 0.05). The difference between women and men was also small in this sample, and the researchers concluded that the ratio’s use as a marker of prenatal hormones seems questionable (Lautenbacher & Neyse, 2020).

A meta-analysis of 47 studies (14,244 cases) on links with criminal, aggressive and risky behaviour likewise found a small average correlation of 0.047 (Pratt et al., 2016). These are tiny associations averaged across groups, so a person’s finger lengths cannot tell you their personality.

Palm reading is a fine conversation starter: something to laugh about with friends as you compare palms, or a way to break the ice with someone new. What the research shows is that palm lines say little about lifespan or personality, not that you should never talk about them. A few habits make it much more relaxed.

First, look at both hands. Traditions do not even agree on which hand to read: Indian palmistry read a man’s right hand and a woman’s left (Zysk, 2025), while in Japan the custom has been the left hand for men and the right for women, and comparing both hands is now often preferred (Yoshino, Nipponica). mind.io’s palm reading page reads either hand and suggests that comparing both can be fun.

Second, treat predictions about lifespan, health or marriage as stories. When the 1990 life line study appeared, even a reader who had long found the occult sciences a rich source of diagnosis and healing wrote to the journal, worried that evidence from dead people’s hands might be used to gauge the living’s chances of recovery, with the psychological trauma such predictions might bring (Lewis, 1990). If someone tells you your life line is short and it stays on your mind, remember that the study measured hands after death.

Third, turn readings into questions. Instead of “they say your fate line is strong”, ask “how is work going these days?”, and the same topic helps you really get to know the person. Laugh off readings that do not fit, and never use them to choose or reject a partner or a colleague. Fourth, palm photos can show fingerprints. mind.io’s palm reading page analyses photos only in your browser and suggests sharing the text of the reading rather than the photo.

Fifth, on days when you want to know yourself better, try a test that measures your current tendencies from your answers. The Big Five personality test measures five personality traits, including the neuroticism measured in the German study above, and the MBTI test shows a type built from four preferences. Unlike a hand, both give results from the items you answer. How far you can trust the MBTI is covered in the guide to MBTI accuracy.

Q. Is there any scientific evidence for palm reading? A. The direct studies we found do not support reading lifespan, personality or fate from palm lines. A 1990 study that found people with longer life lines had died at an older age measured the hands of 100 people after death, so it could not rule out that creases lengthen with age (Newrick et al., 1990). In a 1907 experiment, a palm reader was right about children’s intelligence in 17 of the 27 cases she judged firmly, but Binet, who ran it, noted that she studied the shape of the fingers and palm and seemed to give the lines little weight (Binet, 1907).

Q. Does a short life line mean you will die young? A. We found no evidence that it does. The 1990 study that reported a link between life lines and age at death measured every hand after death, so it could not tell whether a long line led to a long life or a long life led to a long line, a possibility the authors raised themselves (Newrick et al., 1990). A paediatric dermatologist and the secretary of a society of palm readers both objected that the result cannot predict the lifespan of the living (Verbov, 1991; Jones, 1991).

Q. Do palm lines change? A. The main creases form before birth and are usually already there by around week 12 of pregnancy (MedlinePlus, 2025). Some have suggested that life lines lengthen with age (Newrick et al., 1990; Verbov, 1991), but we did not find a study that followed the same people’s palm lines over many years.

Q. Which hand should be read, left or right? A. Traditions differ. Indian palmistry read a man’s right hand and a woman’s left (Zysk, 2025), while in Japan the custom has been the left hand for men and the right for women (Yoshino, Nipponica). There is no settled answer, so enjoy comparing both.

Q. Is a single crease across the palm special? A. Roughly one person in 30 has a single palmar crease, where the two transverse creases merge into one line, and it is often normal (MedlinePlus, 2025). In a study of the palms of 3,216 young Korean adults, counted broadly to include creases that met through branches, the two creases met on 12.6% of palms (Park et al., 2010). The first figure counts people and the second counts palms under a broader definition, so the two cannot be compared. Palm readers give it meanings such as “a strong inner tension”, but we found no research supporting such readings (Park, 1983). A doctor examining a newborn weighs it alongside other signs and does not diagnose anything from the crease alone (MedlinePlus, 2025).

Q. Can finger length (index and ring fingers) reveal personality? A. The ratio of index to ring finger length differs between men and women on average (Hönekopp & Watson, 2010), but in a study of more than 3,000 German adults it showed no clear link with depression, and weak links with neuroticism were no longer statistically significant once age or the interviewer who measured was taken into account (Lautenbacher & Neyse, 2020). A meta-analysis of 47 studies found an average correlation of only 0.047 with aggressive and risky behaviour (Pratt et al., 2016). A person’s finger lengths cannot tell you their personality.

Q. Is there a test that reads personality from your palm? A. mind.io does not offer a test that judges personality from your palm. The palm reading page is a game that looks at how long, clear and unbroken the four main lines are in a photo of your palm and describes them in the language of traditional palmistry, and as the page explains, photos are analysed only in your browser and are never uploaded or stored on a server. If you want to explore your tendencies from your own answers, try the Big Five personality test.

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