Friday, June 13, 2008
Wednesday, June 11, 2008
Summer haircut styles for 2008
As school-age children begin their summer vacation, many parents urge them to get extra-short haircuts for the hot months ahead. For those parents who receive resistance to this idea, science offers several reasons to back them up. Researchers who study the biology of hair suggest a few advantages -- from a scientific point of view -- of a short summer haircut:
Less hair keeps the head cool. People can lose up to 50 percent of their body heat from the top of their head. This is why it's important for everyone to wear hats and earmuffs during the winter months.
But when we don't want to get overheated, having less hair can make it easier for that heat to escape the head. Thick overlapping layers of hair insulate the scalp. Also, short hair will reduce this during hot weather.
Things get even better if the hair is not totally flat. Curly hair, such as an afro, is 'raised' above the scalp and can actually permit wind eddies to cool the head.
Hair grows slightly faster in the hot months, suggests at least one study. A 1991 article in the British Journal of Dermatology explored "androgen-dependent" hair growth in bald men living in temperate climate. Androgen-dependent hair includes some scalp hair and other hair whose growth is influenced by hormones called androgens. By contrast, androgens do not affect the growth in other types of hair such as eyelashes and eyebrows.
According to 1991 study suggested that androgen-dependent hair growth is faster during the spring and summer months and slower during the winter months in temperate regions such the US. Although this study was conducted in men, the results may also apply to women.
One caveat, however, is that the results may not apply to children since their hormonal activity is very different from adults', at least before puberty.
Scalp hair grows up to 0.45 millimeters per day of the Center for Cutaneous Research at Queen Mary's School of Medicine and Dentistry in London. This daily rate translates to about half an inch per month.
Cutting hair does not make it grow back faster, so clever kids cannot use this excuse to delay a haircut.
Of course, shorter hair makes it easier to spot ticks on the scalp, which is important for some areas with a prevalence of Lyme disease.
On the negative side:
Shorter hair, especially for those with lighter hair, receives more exposure to potentially damaging ultraviolet radiation during the summer months. Thicker hair may reduce the amount of UV hitting the scalp, as suggested by the existence of UV-induced scalp problems in bald men.
Hair does a very good job of blocking UV, Tobin notes. It will block ultraviolet rays from reaching the scalp skin as well, if not better, than sunscreen. Thus, hair that is kept very short, for example a buzz cut, will permit UV to gain more access to the scalp. For those with short haircuts, avoiding the direct sun, and wearing light-colored hats, is still the best way to prevent UV radiation from hitting the scalp.
The researchers offered some other interesting tidbits about hair:
Blondes tend to have more hairs per unit area, with redheads having the least, and other hair colors in the middle, Tobin says.
Does hair grow faster during the day than in the night? "There is evidence that hair growth follows a circadian [24-hour] rhythm. We have in fact found some of the circadian clock genes are expressed in hair follicles."
All hair twists as it grows even in hair that looks completely straight. The more twists in a hair fiber he says the curlier it will be.
The thickness of hair is generally between 60-90 microns (millionths of a meter) in European populations, but it can average 120 microns in some Asian populations. By comparison, a red blood cell is about 7-8 microns in size. The different thicknesses, in many cases, result from the varying shapes of hair when viewed edge-on.
Less hair keeps the head cool. People can lose up to 50 percent of their body heat from the top of their head. This is why it's important for everyone to wear hats and earmuffs during the winter months.
But when we don't want to get overheated, having less hair can make it easier for that heat to escape the head. Thick overlapping layers of hair insulate the scalp. Also, short hair will reduce this during hot weather.
Things get even better if the hair is not totally flat. Curly hair, such as an afro, is 'raised' above the scalp and can actually permit wind eddies to cool the head.
Hair grows slightly faster in the hot months, suggests at least one study. A 1991 article in the British Journal of Dermatology explored "androgen-dependent" hair growth in bald men living in temperate climate. Androgen-dependent hair includes some scalp hair and other hair whose growth is influenced by hormones called androgens. By contrast, androgens do not affect the growth in other types of hair such as eyelashes and eyebrows.
According to 1991 study suggested that androgen-dependent hair growth is faster during the spring and summer months and slower during the winter months in temperate regions such the US. Although this study was conducted in men, the results may also apply to women.
One caveat, however, is that the results may not apply to children since their hormonal activity is very different from adults', at least before puberty.
Scalp hair grows up to 0.45 millimeters per day of the Center for Cutaneous Research at Queen Mary's School of Medicine and Dentistry in London. This daily rate translates to about half an inch per month.
Cutting hair does not make it grow back faster, so clever kids cannot use this excuse to delay a haircut.
Of course, shorter hair makes it easier to spot ticks on the scalp, which is important for some areas with a prevalence of Lyme disease.
On the negative side:
Shorter hair, especially for those with lighter hair, receives more exposure to potentially damaging ultraviolet radiation during the summer months. Thicker hair may reduce the amount of UV hitting the scalp, as suggested by the existence of UV-induced scalp problems in bald men.
Hair does a very good job of blocking UV, Tobin notes. It will block ultraviolet rays from reaching the scalp skin as well, if not better, than sunscreen. Thus, hair that is kept very short, for example a buzz cut, will permit UV to gain more access to the scalp. For those with short haircuts, avoiding the direct sun, and wearing light-colored hats, is still the best way to prevent UV radiation from hitting the scalp.
The researchers offered some other interesting tidbits about hair:
Blondes tend to have more hairs per unit area, with redheads having the least, and other hair colors in the middle, Tobin says.
Does hair grow faster during the day than in the night? "There is evidence that hair growth follows a circadian [24-hour] rhythm. We have in fact found some of the circadian clock genes are expressed in hair follicles."
All hair twists as it grows even in hair that looks completely straight. The more twists in a hair fiber he says the curlier it will be.
The thickness of hair is generally between 60-90 microns (millionths of a meter) in European populations, but it can average 120 microns in some Asian populations. By comparison, a red blood cell is about 7-8 microns in size. The different thicknesses, in many cases, result from the varying shapes of hair when viewed edge-on.
Tuesday, June 10, 2008
Wedding Hairstyles -Short and Sassy Wedding Cut
Short wedding styles are just as stylish and this one gives brides with shorter locks a sassy, fun alternative with a coronet for an refined finish
This wedding hairstyle really brings shorter, textured hair to the forefront and combines a floral headband to fully accentuate the look. Shorter hair is definitely easier to style but there are less fancy styles to create. The key is to bring out a cute, chic look and hair accessories definitely help.
Not all women will be able to style their hair like this, it requires a similar cut that can be shorter or longer but tapered at the sides. The focus is brought to the front and crown with some volume added to enhance the appearance.
Use some light wax and create a wide part. If the hair is having a tough time looking defined, a good trick is to first make the front smooth with a flat iron before adding the definition with the wax.
Define the Hair
1. Start by applying a texturising spray into towel dried hair and blow dry while using the fingers to lift the hair from the root, especially at the crown.
The Finally Touch
The floral hair piece really brings out this short cut and without it, the hairstyle would not be wedding ready. Place the hair band below the crown so that there is enough hair parted in the front to compliment the back. Adjusting the hair piece back is always better than moving it forward but not all the way to the crown.
This wedding hairstyle really brings shorter, textured hair to the forefront and combines a floral headband to fully accentuate the look. Shorter hair is definitely easier to style but there are less fancy styles to create. The key is to bring out a cute, chic look and hair accessories definitely help.
Not all women will be able to style their hair like this, it requires a similar cut that can be shorter or longer but tapered at the sides. The focus is brought to the front and crown with some volume added to enhance the appearance.
Use some light wax and create a wide part. If the hair is having a tough time looking defined, a good trick is to first make the front smooth with a flat iron before adding the definition with the wax.
Define the Hair
1. Start by applying a texturising spray into towel dried hair and blow dry while using the fingers to lift the hair from the root, especially at the crown.
The Finally Touch
The floral hair piece really brings out this short cut and without it, the hairstyle would not be wedding ready. Place the hair band below the crown so that there is enough hair parted in the front to compliment the back. Adjusting the hair piece back is always better than moving it forward but not all the way to the crown.
Thursday, June 5, 2008
Monday, June 2, 2008
Great Haircut Styles: Short Hairstyles are In-Trend this Summer
Genres présente décote à court Hairstyles sont-Trend Dans cet été
La coiffure et la mode mai varient de saison en saison, mais une chose est certaine pour l'été 2008, coiffures court sera très à la mode cet été. Il est déjà grand nombre de diverses célébrités sportives à court et chic cheveux qui peut facilement être copié et utilisé dans la vie quotidienne.
La majorité des femmes célébrités décidé pour les cheveux courts pour les prochains mois d'été. Nous pouvons citer que quelques-uns, les plus célèbres sont sans doute Katie Holmes, Scarlett Johansson et Victoria Beckham. Les cheveux courts vous feront voir chiches et sexy!
La coiffure et la mode mai varient de saison en saison, mais une chose est certaine pour l'été 2008, coiffures court sera très à la mode cet été. Il est déjà grand nombre de diverses célébrités sportives à court et chic cheveux qui peut facilement être copié et utilisé dans la vie quotidienne.
La majorité des femmes célébrités décidé pour les cheveux courts pour les prochains mois d'été. Nous pouvons citer que quelques-uns, les plus célèbres sont sans doute Katie Holmes, Scarlett Johansson et Victoria Beckham. Les cheveux courts vous feront voir chiches et sexy!
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