5 secrets to prevent cancer recurrence from Japanese doctors

Dieting, getting enough sleep, exercising, increasing body temperature, and laughing more are five secrets that Dr. Takashi Funato applied to help prevent cancer recurrence 15 years after surgery.

Dr. Takashi Funato, director of the Funato Clinic in Gifu Prefecture, Japan, was diagnosed with kidney cancer in 2007. After surgery, he began to reflect on his lifestyle habits.

He categorized the changes in his lifestyle into five types: diet, sleep, exercise, body temperature, and laughter. Fifteen years after surgery, his cancer had not recurred.

Diet

Takashi said that before being diagnosed with cancer, his diet was very unhealthy. The doctor frequently ate instant noodles to satisfy his cravings and didn't restrict fast food or snacks. He believes his biggest mistake in his diet was not paying attention to dieting and thinking that he wouldn't get cancer.

After the surgery, Takashi said he reduced his sugar intake, ate more local and seasonal foods, and ate until he was 80% full instead of completely full. In addition, he ate less red meat, foods without additives or with minimal pesticides, followed a regular eating schedule, and occasionally fasted.

Get enough sleep

Takashi believed that sleep was one of the key factors in cancer treatment. As a surgeon, constantly at the hospital, his sleep was quite erratic. He took his poor sleep habits for granted and didn't realize how bad they were.

However, sleep is a natural healing force. Lymphocytes that eliminate cancer cells are primarily controlled by the parasympathetic nervous system, which is dominant at night. If a person's sleep time is short, the parasympathetic nervous system's activity time is short, and the time it takes for lymphocytes to eliminate cancer cells is also shortened. Therefore, Takashi recommends that cancer patients go to bed at 10 PM, wake up at 6 AM, sleep for at least six hours, and never go to bed later than midnight.

Mr. Takashi Funato was diagnosed with kidney cancer 15 years ago, and after surgery, the cancer has not recurred. Photo: Takashi Funato — Mr. Takashi Funato was diagnosed with kidney cancer 15 years ago, and after surgery, the cancer has not recurred. Photo: *Takashi Funato*

Do exercise

Takashi walked at least 3,000 steps a day after his surgery. He advised cancer patients to walk as much as possible and exercise their muscles.

During exercise, body temperature rises and lymphocytes are activated, so muscle training and increased body temperature boost the immune system. Additionally, exercise can allow the body to receive more oxygen and inhibit the growth of cancer cells.

Exercise can also cause muscles to consume sugar, reducing the supply of nutrients to cancer cells.

Body temperature

Takashi believed that increasing body temperature made you healthier because cancer cells thrive in low temperatures. He pointed out that a higher body temperature increased the activity of immune cells and also increased the number of heat shock proteins that function to repair cells. Therefore, he paid close attention to keeping the body warm, especially in winter, particularly the abdomen and lower body.

Laughter

Takashi advises cancer patients to smile more to stay cheerful. According to him, even if they can't smile naturally, they should still smile intentionally. Trying to take a deep breath and smile will make them feel more relaxed. Considered a daily tip, this can become a key technique for reducing stress and negativity.

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