Firstly, it is important to understand that all types of hair can get head lice and no hair type is immune to them. In fact, curly hair is often more vulnerable to catching them because it has more volume than straight or thin hair.
There is no specific hair type that lice prefer. All lice need is a clean strand of hair to attach to. It doesn't matter the thickness, the length, if it's been colored, if it's straight, or if it's curly. It has been found that people with longer hair tend to report getting lice.
As far as we know, there have not been any clinical studies proving any human population to be immune to head lice. However, head lice can have difficultly attaching their eggs to hair that is thick or coarse; therefore, those individuals may be less likely to experience head lice infestation.
"We find that you can get head lice on almost every type of hair imaginable — thick, thin, long, short, clean, dirty — it really doesn't make a difference," Dr Webb said. Having particularly thick or long hair might increase your chances of picking up head lice, simply because you have more available hair.
Lice are more common in straight hair, but they can still attach to curly hair. According to Henry, lice are more likely to attach to straight hair because of the shape of the follicle.
Hairspray makes it harder for the louse to grab hold. The smell of hairspray and the use of solvents (sad but true) in them can also deter creepy crawlies from finding their way in. Not to mention that if you're tying longer hair back, you've got a double whammy.
Lice move in dry hair and they may therefore be easier to spot, at least if there are many.
Adults are not immune to head lice. In fact, if you have any close contact with children or even parents of children you can be at risk of catching them if they have them. Lice transfer primarily through head to head contact, so you would have to get close to the other person.
Lice and nits can't survive the high heat. It's true that lice and nits can't survive temperatures above 113°F (45°C). This makes them susceptible to any heat source, such as a hairdryer or the plates of a hair straightener.
Hair color does not make a difference with head lice. Whether you have blonde or dark hair, you are as susceptible to lice as anyone else. So it's better to prevent the infestation before it spreads. Early detection is key to preventing a severe infestation.
Preventing Lice
Your child might have a positive blood type hence prone to lice infestations. However, the rest of the family members are likely to be blood type negative, and because lice don't like switching rhesus factors, they will not be affected as much.
They don't stay living inside the dreads because there they have nothing to live on, they have no food. However, they can use the root zone a little further from the skin to lay eggs and breed (the baby louse is called a nit). Lice usually go to dense hairs where it's easier for them to find a hiding place.
Head lice can affect anyone but occur most often among children between the ages of 3 to 11 years old, along with their families. Children are more at risk, as they make head-to-head contact with other children when playing together and may share items that have contact with their hair.
It turns out that white people tend to have round cross sections for their hair, a shape that our European lice are well adapted to. Black people, on the other hand, tend to have an oval cross section shape to their hair. This oval shape is just different enough to make lice uncommon with African-Americans.
Lice are attracted to the blood they get through your scalp – short, long, clean or dirty.
Lice don't care if hair has been colored. As long as a louse can grab on to a hair strand, it can make its way to the head where its food supply (blood) is. Myth #6: Lice like dirty hair. Head lice actually prefer clean hair since it is easier for the female to attach her eggs.
Body lice, close relatives of head lice, die when exposed for 5 min to a blow dryer delivering air at 50°C. Researchers in Salt Lake City, USA (Brad M Goates and colleagues. Pediatrics 2006;118:1962–70) have assessed six different methods of killing head lice using hot air.
While hair stylists may be trained to identify lice and their eggs (nits), they are not allowed to invite you in for a free head check. It is a health code violation for them to do this.
Do lice eventually die off? Head lice eventually die off, but a head lice infestation does not. Head lice live up to 30 days and then they die, but in that time, they will have procreated and laid up to 300 eggs per female head louse.
Infestation timeline
So if you look on the scalp and see no visible adult lice and several small nits, it's likely that you've caught lice in the earlier stages and had them for less than 2 weeks. Nits and nymphs: 1.5 to 2 weeks. If you see nits and small, moving lice, you've likely had lice for 1.5 to 2 weeks.
In fact, adults can get lice anytime their hair is in close contact with the hair of someone who has lice. Whether public transportation, concerts, or crowded areas, any situation in which there is hair to hair contact puts adults at risk of getting lice.
Indications of head lice infestation include: the tickling feeling of something moving in the hair, itching, feeling irritable or having difficulty sleeping, and having sores on the head caused by scratching. How soon after exposure do symptoms appear? Itching might begin a few days to several weeks after infestation.
4 You cannot get rid of lice with a hair brush or with a hair dryer. 4 The best way to find head lice is by using a fine toothed lice comb on hair that is dry, wet or wet with conditioner. 4 Only treat when you find a live louse on the head.
Lice for Building Immunity
Recent studies have shown the benefits of having lice. While it may sound ridiculous and unbelievable, there's scientific evidence that a certain kind of louse can be beneficial in reducing the chances of developing immune deficiencies.
While itching is a primary symptom of head lice, and most people associate head lice with an itchy scalp, many people are surprised to find they have lice but no symptoms—at least for the first few weeks of an infestation.