If Tokugawa Ieyasu Appeared in Modern Tokyo, Would He Die in Hours?

Key facts

  • If Tokugawa Ieyasu Appeared in Modern Tokyo, Would He Die in Hours?
  • Dog Diner Co., Ltd. released a column discussing environmental changes in modern Tokyo from a historical perspective and the importance of oral care for dogs and cats. Modern Tokyo summers often exceed 38 degrees Celsius, a significant change from the Edo period. Research suggests that if a modern person time-traveled to the Edo period, their survival would be 3-5 years, with periodontal disease-related sepsis being a top cause of death. Approximately 80% of dogs over three years old suffer from periodontal disease, and affected dogs have a 1.4-1.6 times higher mortality risk. Dog Diner proposes a "Eating Toothbrush Revolution" with an additive-free powder to prevent oral issues in pets.
  • Source: PR Times
  • Date: April 14, 2026

Direct answer

Dog Diner Co., Ltd. released a column discussing environmental changes in modern Tokyo from a historical perspective and the importance of oral care for dogs and cats. Modern Tokyo summers often exceed 38 degrees Celsius, a significant change from the Edo period. Research suggests that if a modern person time-traveled to the Edo period, their survival would be 3-5 years, with periodontal disease-related sepsis being a top cause of death. Approximately 80% of dogs over three years old suffer from periodontal disease, and affected dogs have a 1.4-1.6 times higher mortality risk. Dog Diner proposes a "Eating Toothbrush Revolution" with an additive-free powder to prevent oral issues in pets.

Citation
If Tokugawa Ieyasu Appeared in Modern Tokyo, Would He Die in Hours? (April 14, 2026), PR Times
Source
PR Times
Date
April 14, 2026
Dog Diner Co., Ltd. released a column discussing environmental changes in modern Tokyo from a historical perspective and the importance of oral care for dogs and cats. Modern Tokyo summers often exceed 38 degrees Celsius, a significant change from the Edo period. Research suggests that if a modern person time-traveled to the Edo period, their survival would be 3-5 years, with periodontal disease-related sepsis being a top cause of death. Approximately 80% of dogs over three years old suffer from periodontal disease, and affected dogs have a 1.4-1.6 times higher mortality risk. Dog Diner proposes a "Eating Toothbrush Revolution" with an additive-free powder to prevent oral issues in pets.
otherNQ 100/100出典：PR Times

📋 Article Processing Timeline

  • 📰 Published: April 14, 2026 at 23:58
  • 🔍 Collected: April 14, 2026 at 15:31
  • 🤖 AI Analyzed: April 14, 2026 at 16:54 (1h 22m after Collected)
Dog Diner Co., Ltd. (Location: Akasaka, Minato-ku, Tokyo; Representative Director: Maako Ishida) has released a column discussing environmental changes in modern times from a historical perspective and the importance of oral care. The background highlights that modern Tokyo summers frequently exceed 38 degrees Celsius, whereas about 500 years ago, during the Edo period when Tokugawa Ieyasu lived, temperatures were around 28-32 degrees. PM2.5, dioxins, and photochemical smog did not exist then. Despite being the same Tokyo, the environment has completely changed. An astonishing fact is that if a modern person were to time-travel to the Edo period, research data estimates their survival period to be 3-5 years. The top three causes of death would be: 1st: Smallpox (modern humans have zero immunity), 2nd: Dysentery, cholera, infectious gastroenteritis (no antibiotics), 3rd: Sepsis from periodontal disease. The most notable risk, periodontal disease, still has no complete cure in 2026, even in an era where humanity aims for the moon and AI draws pictures. Once contracted, periodontal disease is incurable. Regarding its impact on dogs and cats, data from the American Veterinary Dental College indicates that approximately 80% of dogs over three years old already suffer from periodontal disease. Humans can brush their own teeth, but dogs and cats cannot protect their teeth themselves. A large-scale study by Banfield Pet Hospital shows that dogs with advanced periodontal disease have a 1.4-1.6 times higher mortality risk compared to those without. Dog Diner Co., Ltd. addresses this issue by advocating the "Eating Toothbrush Revolution," an additive-free formula that can be simply sprinkled on food, suitable for pets that dislike toothbrushes, and designed for easy daily continuation. They state, "This is modern times, not the Edo period. There are ways to prevent it." The "Eating Toothbrush Revolution" is an additive-free powder and sprinkle supplement that can prevent bad breath and periodontal disease by simply adding it to food. © 2026 Copyright Dog Diner Co., Ltd. Eating Toothbrush Revolution Copyright. For the full column, visit note: https://note.com/dogdiner/n/n4cc7703a3e3b and Rakuten column: https://www.rakuten.co.jp/dogdiner/contents/hamigaki6/. Company Overview: Company Name: Dog Diner Co., Ltd. Representative: Maako Ishida. Location: Akasaka, Minato-ku, Tokyo. Business: Online sales of health foods for dogs, cats, and pets. Official Website: dogdiner.co.jp. Rakuten Ichiba: https://www.rakuten.co.jp/dogdiner/. Contact: MAIL: dogdiner@dogdiner.co.jp.

FAQ

What is the purpose of the column published by Dog Diner Co., Ltd.?

The purpose is to explain the environmental changes in modern Tokyo and the importance of oral care for dogs and cats from a historical perspective.

What kind of product is the "Eating Toothbrush Revolution"?

It is a completely additive-free powdered supplement that can prevent bad breath and periodontal disease by simply sprinkling it on food.

What are the key facts in this article?

Dog Diner Co., Ltd. released a column discussing environmental changes in modern Tokyo from a historical perspective and the importance of oral care for dogs and cats. Modern Tokyo summers often exceed 38 degrees Celsius, a significant change from the Edo period. Research suggests that if a modern person time-traveled to the Edo period, their survival would be 3-5 years, with periodontal disease-related sepsis being a top cause of death. Approximately 80% of dogs over three years old suffer from periodontal disease, and affected dogs have a 1.4-1.6 times higher mortality risk. Dog Diner proposes a "Eating Toothbrush Revolution" with an additive-free powder to prevent oral issues in pets.

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