There is a change in the appearance of the number one in the United States, President Barack Obama. Her hair looks more gray. When asked by the media, he said that the change was influenced by genes, not because of job stress.
"My grandfather started graying when he was 29 years old. So a matter of time when it happened to me. Incidentally this hair color changes during my tenure as president," he saidas quoted by ABC News.
Obama's answer may seem diplomatic. But biologically, gray hair that comes more quicklyindeed heavily influenced by heredity, especially at the age of Obama, who had stepped 50 years. At that age, 50 percent of men will experience perubanan in most of their hair.
In an article published in the Journal of Investigative Dermatology in 2005 reported thatCaucasian hair graying average of 30 years in middle age, while Asians at the end of theage of 30 years, and Africans in the mid 40 years. Obama, whose mother is Caucasianand his father's bloody Africa, began to show changes in hair color at the end of the age of40 years.
Regarding the influence of stress on the hair color change, it turns out the expertsdisagree. Scientific proof that stress makes people go gray also not convincing.
According to the biologist Gerald Weissmann, editor senior biology FASEB journal, untilnow there is no literature that says that stress makes your hair gray faster.
"Look at the hair of young people in conflict areas or army soldiers who fought. Their hair was not gray though chastened every day stress. Even more gray hair was instrumental in bringing about the gene," he said.
However, not everyone agrees with the conclusion of Weissmann. According to AndrzejSlominski, the dermatologist, genetics does have a significant effect on the incidence of gray hair, but there is scientific evidence indicating that environmental factors such asstress are also influential.
"There is a link between stress and gray hair. This phenomenon has emerged at the time of World War II when the army of a sudden hair became gray look," he said.
Meanwhile, according to other members, the influence of stress on the hair may be due tostress. Hormone will trigger the production of free radicals. This can result in pigment been caused to the hair.
In addition, stress also affects the body, such as suppresses the immune system, causedigestive disorders, and raise blood pressure. Experts say, the change process also result in hair follicles.
Although the primary cause of the appearance of gray hair at a young age is not known with certainty, the basic theory remains the same occurrence of gray hair. It happens becausehair follicles begin to ripen and gradually lose the pigment cells that give color to the hair.When the hair had been black or another color loss, replacement more often white or grayhair.
Hair that is colored white or gray is actually still the same with your hair that long, but now nolonger have a color. At first glance it looks gray hair because it contrasts with others that are still colored hair.
0 comments:
Post a Comment