High individuals are at greater risk of cancer because they have more cells in the body. New research has suggested.…
High individuals are at greater risk of cancer because they have more cells in the body. New research has suggested.
A person’s risk of developing cancer increases by 10% for every 10 centimeters the average height, the study said, as they have more cells that can mutate and lead to cancer.
Mean height was defined in the study as 162cm for women and 175cm (5 feet, 9 inches) for men.
The results match previous research, which has also linked height to increased risk of developing a number of health problems including blood clots, heart problems and diabetes.
Leonard Nunney, a professor of biology at the University of California Riverside, analyzed previous sets of data on cancer contractors ̵
1; each of which included more than 10,000 cases for both men and women – and compared the expected rates based at their height.  He tested the hypothesis that this was due to the number of cells against alternatives, such as possible hormonal differences in higher humans, which could lead to increased cell division.
A link was found between a person’s total cell number and their likelihood of getting cancer in 18 of the 23 cancer samples tested for, said the study.
Research also found that the increase in risk is greater for women, with higher women being 12% more likely to get cancer and higher men 9% more likely to do so. These findings matched Nunney’s predicted interest rates, using his models, 13% for women and 11% for men.
Colon and renal cancer and lymphoma were among the types of cancer whose correlation was strongest.
“We have known that there is a link between cancer risk and height for quite some time – the higher someone is, the higher the risk of cancer,” says Georgina Hill from Cancer Research UK to CNN.
“What we have not is sure why – if it’s just because a higher person has more cells in the body, or if there’s an indirect link, like something about nutrition and childhood. “Allow Hill, who was not involved in the study.
She said that the study gives good evidence of the “direct effect” theory that the total number of cells actually causes the link.
“The method is good – they took data from major studies, which is important and they looks oath in many different categories of cancer. “
But she noted that the increase in the risk of developing cancer is small compared to the effects lifestyle changes may have.
” There was only a slightly higher risk and that there are more important actions that people can take to make positive changes, [such as] quit smoking and maintain a healthy weight, “she said.
Two of the types of cancer tested for thyroid cancer and melanoma proved more susceptible to an increased risk than expected, and Nunney suggested in the study that other factors could be in play in such cases, for example geography.
“There are no obvious reasons for these exceptions, although the author speculates that cell turnover rates can be a game of melanoma,” Dorothy C. Bennett , head of the Molecular and Clinical Sciences Research Institute in London told CNN . Bennett, who was not involved in the study, explained that pig nt cells, the source of melanoma, split up and replaced a little faster with higher humans.
“But I can not currently think of any reason why this [faster division] should be so, but no other clear reason for higher correlation with height,” said Bennett.