You may not know this, but traditional medicine has long used stool characteristics and bowel habits as clues to diagnose health conditions. In many ways, bowel movements can serve as a "mirror" of a person's overall health and even their potential longevity.

There is one thing everyone does every day—sometimes several times a day—yet it is rarely mentioned in conversations about health or lifespan. People often discuss diet, sleep, and exercise, but they tend to overlook a very familiar signal: going to the bathroom. From a medical perspective, however, bowel movements are among the most honest and easily observable health reports the body provides each day. They reflect the condition of the digestive system and gut health and, according to many studies, may even be linked to long-term longevity.

Interestingly, this is something anyone can monitor without laboratory tests or complicated equipment. Simply paying attention to the frequency, timing, comfort, and characteristics of bowel movements can provide valuable insights into gut health. According to gastroenterologists, the following four bowel habits are commonly found in people who tend to live longer.

1. A Healthy Bowel Movement Frequency

A joint study conducted by researchers in the United States and China, published in the journal Gut in 2021, analyzed the lifestyle and health data of more than 400,000 people. The findings showed that both excessively frequent and infrequent bowel movements were associated with a significantly higher risk of death.

Specifically, people who had bowel movements more than twice a day or less than once every three days had a noticeably higher risk of cardiovascular disease, diabetes, and even cancer than the rest of the population. In contrast, individuals who maintained a frequency of about once a day had the lowest overall mortality rate and the most balanced metabolic health.

Experts from the Chinese Society of Gastroenterology agree that a normal bowel movement frequency is generally once a day or once every two days. If someone goes more than three days without a bowel movement or needs to use the bathroom many times a day while experiencing discomfort, it should not be ignored.

2. Having a Consistent Bathroom Schedule Every Day

Besides frequency, whether a person goes to the bathroom at a regular time each day is also considered an important sign.

Dr. Mai Yunping from the Department of Gastroenterology at Guangdong Provincial People's Hospital in China says that people who live longer often have bowel movements at relatively fixed times each day, most commonly in the morning after waking up. After a night's rest, the body becomes active again, and intestinal movements are stimulated, making it easier to eliminate accumulated waste.

Some people also develop the habit of drinking a glass of warm water immediately after waking up to help activate the gastrocolic reflex. Additionally, feeling the urge to have a bowel movement within about two hours after eating is generally normal and not a cause for concern, as food entering the stomach naturally increases intestinal activity.

A long-term study involving middle-aged and older adults also found that people who maintained regular bowel schedules had a lower risk of chronic diseases compared with those who did not have a consistent routine.

3. Smooth and Comfortable Bowel Movements

The third characteristic concerns how easily bowel movements occur.

Dr. Peng Tao from the Department of Gastroenterology at Peking University People's Hospital in China notes that people who live longer generally have healthy intestinal motility. Their bowel movements usually take only a few minutes, without excessive straining, prolonged sitting on the toilet, or a lingering feeling of incomplete evacuation.

For people who frequently suffer from constipation, comfortable bowel movements may seem like a luxury. If laxatives are regularly needed to have a bowel movement, it may be an early warning sign of colorectal cancer.

On the other hand, if someone needs to use the bathroom very quickly and frequently, has loose stools, feels an urgent need to go immediately, or experiences leakage if they cannot reach the toilet quickly enough, it may warrant evaluation for conditions involving the liver or pancreas.

4. No Abnormal Changes in Stool

The final characteristic lies in the appearance and nature of the stool itself—a detail that many people overlook but that can reveal a great deal about digestive health.

According to Dr. Liu Juan from the Department of Gastroenterology at Zhongda Hospital, affiliated with Southeast University in China, people with healthy digestive systems typically have stools with a stable shape, normal color, and no signs of blood. Their stools do not contain excessive grease floating on the water, do not appear abnormally black, and do not have an unusually strong or strange odor.

Frequently noticing bright red blood or black blood in the stool, especially when accompanied by an unusual foul smell, may indicate digestive disorders, including colorectal cancer. Likewise, stools that contain a lot of grease and are difficult to flush may suggest problems with fat absorption or conditions affecting the liver or pancreas.

A persistent feeling of incomplete bowel evacuation that does not improve despite straining should also not be ignored.

Pay Attention to Sudden Changes

Experts emphasize that if bowel habits suddenly change and remain different for several weeks, or if symptoms such as persistent abdominal pain, blood in the stool, or unexplained weight loss occur, medical attention should be sought promptly.

These changes should not be dismissed as minor everyday issues. They may be warning signs of serious diseases and, in some cases, potentially life-threatening conditions.