Hair thickness is an “additive" trait. This means that if you inherited two copies of the “thick hair" version of the gene (one from each parent), you'll likely have even thicker hair strands than if you only inherited the "thick hair" version from one parent.
One popular myth is that hair loss in men is passed down from the mother's side of the family while hair loss in women is passed down from the father's side; however, the truth is that the genes for hair loss and hair loss itself are actually passed down from both sides of the family.
Hair follicles come in different shapes and sizes, affecting hair texture and width. Some people have wider follicles-and therefore, thicker hair strands-than other people. Genetics influence hair thickness, but other factors like hormones and age are important factors, too.
Genetic factors appear to play a major role in determining hair texture—straight, wavy, or curly—and the thickness of individual strands of hair. Studies suggest that different genes influence hair texture and thickness in people of different ethnic backgrounds.
Variant may explain wider hair fibers in East Asians
According to a talk presented here last week at the annual meeting of the American Society of Human Genetics, a single genetic variant may explain why East Asians have thicker hair fibers than other populations.
Caucasians have the highest hair density among the ethnicities studied. Black people have the lowest. Asian people have hair density that falls somewhere in between.
The cuticle layer in Asians is thicker with more compact cuticle cells than that in Caucasians. Asian hair generally exhibits the strongest mechanical properties, and its cross-sectional area is determined greatly by genetic variations, particularly from the ectodysplasin A receptor gene.
If you can visibly see sections of your scalp underneath or through the hair, then your hair is thin. If you barely see your scalp at all, your hair is thick. If it's somewhere in-between, then your hair has a medium density.
The thickest strand of human hair is 772 micrometres (0.03 inches) and was plucked from the beard of Muhammad Umair Khan (Pakistan), in Lahore, Punjab, Pakistan, as verified on 3 March 2021. The hair was discovered on Muhammad's chin as part of his beard.
Here's the truth: You can't change the size of your hair follicles. If you were born with fine hair, it's genetics, and no product will completely alter that. Of course, there are ways to maintain your hair health, add volume, and keep it from getting any thinner.
Fine hair describes your hair's texture, which is classified in terms of the width, diameter or circumference of the actual hair strands. If you have fine hair, your individual strands are smaller in diameter, while coarse hair has a thicker diameter.
11 in the journal Matter, shows that thin hair tends to be stronger than thick hair because of the way it breaks. "We were very surprised by the result," says first author Wen Yang, a nanoengineering researcher at the University of California San Diego.
All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. The Supporting Evidence: Y-linked traits follow a clear paternal lineage.
Unlike nuclear DNA, which comes from both parents, mitochondrial DNA comes only from the mother.
Baldness can of course skip generations! If you have bald relatives on both sides of your family tree the chances are high you will be too. However, if the baldness shows up only on one side, it's highly possible the MPB gene will skip not only you but also your siblings. This is how the recessive gene works.
(Another fun fact: While men experience their thickest hair in their 20s, many women experience their thickest head of hair in this decade.)
Asian hair, usually smooth and brown to black in color, grows perpendicular to the scalp. It has the fastest growth rate with about 1.4 centimeters per month.
It's caused by excess hormones called androgens. For women, the hair may grow in places where men often have a lot of hair, but women often don't.
First things first, thick hair doesn't necessarily mean healthy hair. Some peeps desire thick hair because they associate it with fuller, healthier-looking hair. Many folks try to avoid thinner hair because of its perceived links to unhealthy hair and hair loss.
Here's the hard truth: Little can be done to permanently change the diameter of individual hair strands. Thickening products can do wonders to temporarily plump hair strands, but when it comes down to it, fine hair is genetic and can't be changed.
Although Middle Eastern and Indian hair is typically thicker and fuller in comparison to other hair types, there are still many people who suffer from hair loss who have this type.
* East Asian hair has twice the diameter and a much thicker cuticle than Caucasian hair. Most hair types have around five layers of cuticles while East Asian hair has closer to ten.
According to Personal Health via the New York Times, Caucasians are the hairiest ethnic group, with Semitic and Mediterranean people being the hairiest out of all Caucasians.
Certain races have higher rates of hair loss compared to others. Caucasians have the highest rates out of all the ethnic groups. On the opposite end of the spectrum, Native American Indians, Inuits, and Chinese have the lowest rates.