A study conducted by the University of Edinburgh in the UK proposes that human intelligence can be partially predicted by physical factors.
Certain Body Parts Indicate IntelligenceBritish scientists claim that several parts of the human body can reveal a person's intelligence, as well as their overall health and personality. However, it's important to note that the information presented here is for reference only. Not possessing the traits listed does not necessarily imply a lack of intelligence.
Body hair
According to research from the University of Edinburgh, men with thicker body hair tend to have higher IQs. Men with more body hair are often considered to be more intelligent.

Another study of U.S. medical students found that nearly half of the top male medical students surveyed were hairier.
A wide forehead is considered a sign of intelligence according to Chinese physiognomy. People with this trait are believed to be capable of completing tasks more quickly and often require less explanation.
A pointy chin
A study in the Czech Republic confirms that smart men generally don't have big, square chins like those seen in movie superheroes. On the contrary, smart people tend to have slimmer chins and pointed chins.

According to a study in the Czech Republic, the chin is one of the parts of the body that shows intelligence.
Nose
It is said that the nose is one of the parts of the body that shows your intelligence. In the 19th century, there was a discipline in the West called "rhinology". Basically, rhinologists try to correlate personality traits with the shape of the nose. This assessment is considered to be quite accurate.

Therefore, a hooked nose is considered a sign of intelligence, and people with this nose tend to make quick choices. It is said that a straight nose is a sign of artistic tendencies. People with wide nostrils have the ability to perceive deeply…
Index finger

One study says boys with smaller index fingers do better in math; girls with smaller index and ring fingers also appear smarter.
Left handed
Many studies have shown that left-handers have many talents and are particularly intelligent.

They have the ability to handle problems well and are talented leaders. Many famous leaders are left-handed, such as Obama, Bill Clinton, and Gerald Ford. Their right hemispheres also tend to be more developed.
Ear
Some researchers believe that asymmetrical earlobes indicate high intelligence. In 2012, British scientists discovered that people with one earlobe longer than others have leadership qualities.

(*) The information in the article is for reference only.