• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar

Japan & Extra

You Every day Japan

  • Culture
  • Travel
  • History
  • Food
  • Manga
  • Job
  • Business
  • Technology
  • News

Japanese women’s breast size boasts 40 years of continued growth

September 21, 2019 by Japan Daily Leave a Comment

Well, there’s no denying it any more: the size of Japanese mammaries have become larger. We know this thanks to a survey by lingerie manufacturer Triumph International Japan, which recently made public the results of its research.

According to Nikkan Gendai (Aug 7), the subjects of the survey were Japanese females between the ages of 20 through 60 years. And when the data was confirmed, Triumph found that while only 4.5% of its customers  had required a D-cup size bra or larger back in 1980, that percentage had expanded to 17.6% by 1990. By 2018, the percentage had swelled impressively to 53.1%. Or in other words, a remarkable twelve-fold increase over 40 years.

Interestingly, the 17.5 centimeter average measurement from the underside of the breast to the top had not shown any appreciable change during those four decades. Which means the size of the breasts themselves had definitely become larger.

Naturally Nikkan Gendai’s reporter wants to know why.

“There are two reasons for this,” explained Shuko Sakata, manager of brand marketing at Triumph. “The first is changes in the diet, such as increased meat consumption and westernization in general. The other is because we manufacturers have become better at teaching customers the correct way to select a brassiere. When putting on their bras, women tend to lean forward and by so doing gravity collects fleshy parts on the sides of their torso to fill up the cup. That alone can increase cup size by as much as two sizes.”

Mutsuko Taniguchi, a veteran stylist with some 40 years in the trade, is in agreement.

“These days when women put on their bra, they press in their flesh from four directions — from the sides below their arms, up from their stomach area and then downwards from their collarbones. Doing this produces more cleavage, and posture benefits from an overall improvement,” she said.

Japan has a culture of exposure, says Taniguchi, so women here want to emphasize their cleavage, whereas these days western females tend to dress in a way that enables their left and right breasts independent movement.

Arata Samon, a doctor and author, estimates that 70 to 80% of women’s breast sizes are determined by heredity.

“But for the remaining 20% or so, nutrition has a certain effect,” he says. “About 90% of a breast is composed of fat cells. The levels of body fat are determined at three life stages: while still an embryo, while nursing up to around age 3, and then at puberty. If one’s mother ingests a lot of beef or pork during pregnancy, the number of fat cells in the fetus will increase. Then what they consume as children and adolescents, such as meat, dairy products, fried chicken, convenience store sandwiches and so on, will enhance the size of the breasts. If you look back at dietary changes over the past 40 years, the greater ingestion of fats has definitely had an impact on women’s breast size.”

And no doubt we can look forward to continued growth in the future, the writer says.

Source: JAPANTODAY

Filed Under: Manga, Weird

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

YOU MAY LIKE

Japanese Monk Rescues ‘Too Loud’ Dog, Gets Life Saved in Return

A Japanese Buddhist monk was rescued from a bear attack by his adopted Beagle, Chico, near Youkoku Temple in Niigata Prefecture on May 29, 2025. Tougen Yoshihara, the 45-year-old abbot of the historic temple, was walking the one-year-old dog in nearby woods when a 1.6-meter-tall bear appeared. Yoshihara, known for his muscular physique, panicked and […]

10 Reasons Why The Japanese Live Longer Than Any Other People On Earth

It’s no secret that the people of the land of the rising sun tend to outlive pretty much everyone else. For years, people in the West have been looking at the Japanese and scratching their heads, witnessing as Japan rose from having one of the lowest life expectancies post-WWII to topping the charts globally. What […]

Japanese gesture

7 Essential Japanese Gestures to Master for Seamless Communication

In Japan, communication goes far beyond spoken words. A subtle head tilt, a specific hand movement, or the angle of a bow can convey messages as clearly as words—sometimes even more powerfully. For visitors and newcomers to Japan, understanding these nonverbal cues is essential for navigating social interactions and avoiding unintended misunderstandings. Japanese culture has […]

The World’s Smallest Park: A Miniature Green Space in Nagaizumi, Japan

In the small town of Nagaizumi, located in Shizuoka Prefecture, central Japan, a park measuring just 0.24 square meters has officially earned its place in history as the world’s smallest park, according to Guinness World Records. This quirky green space, smaller than a typical kitchen table, holds a significant place in the town’s identity and […]

Top 10 Most Popular Japanese Actresses

Oricon Style, a company with a status similar to that of Billboard, has recently published a ranking of the most popular artists in Japan. This company regularly releases top 10 rankings covering various areas of Japan’s entertainment industry, including music, television, and other forms of art. Through its rankings , it is possible to get […]

  • Privacy Policy
  • About us
  • Contact

Copyright © 2026 · Magazine Pro on Genesis Framework · WordPress · Log in