The Rise of Hot Water: Exploring the Health Benefits and Cultural Roots of a Trending Tradition

From prebiotic sodas to the “sleepy girl mocktail,” wellness trends approach and go. Now, a simple practice—drinking hot water—is gaining traction online, fueled by social media and a growing interest in Eastern medicine. But is there real science behind the hype, or is this just another fleeting fad?

A Tradition Rooted in Eastern Medicine

The practice of drinking hot water is deeply ingrained in Traditional Chinese Medicine (TCM) and Ayurveda, a holistic medical system from India. For thousands of years, practitioners have encouraged consuming warm water, particularly in the morning, to support optimal digestive function. According to Jeff Gould, an acupuncturist at Johns Hopkins Medicine trained in TCM, consuming cold beverages can hinder digestion and lead to gastrointestinal discomfort like bloating. [1]

What Does the Science Say?

While the anecdotal evidence is strong, scientific research on the benefits of hot water is limited. A 2016 study involving patients recovering from gallbladder surgery found that those who drank warm water experienced quicker relief from gas compared to those who didn’t drink anything. [2] However, the study didn’t reveal a significant impact on the timing of the first bowel movement, and other research suggests coffee may be more effective for that purpose.

Some small-scale studies suggest cold drinks or meals may slow stomach emptying, but experts like Linda A. Lee, a gastroenterologist at Northwell Health, emphasize that the impact on how you feel remains unclear. [2]

How Hot Water May Aid Digestion

Lisa Ganjhu, a gastroenterologist at NYU Langone Health, explains that drinking warm water, even in small sips upon waking, can stimulate the digestive system. Digestion naturally slows during sleep, and any intake—regardless of temperature—triggers muscle contractions in the esophagus, stomach, and intestines, signaling the body to “wake up” and initiate processing food. [2]

Gastroenterologists, like Folasade May at UCLA, have observed that patients often report easier bowel movements after drinking warm water (often with lemon) in the morning. She notes that the temperature of the water may not be the primary factor, and a similar effect could be achieved with warm or cold water. [2] Any movement in the gastrointestinal tract, stimulated by water, coffee, juice, or food, helps move both stool and gas, potentially reducing bloating and distension.

Beyond Digestion: Hydration and Overall Wellness

The benefits of drinking hot water may extend beyond digestion. Kristen Smith, a nutritionist and spokesperson for the Academy of Nutrition and Dietetics, clarifies that water itself doesn’t “detoxify” the body—that’s the role of the liver and kidneys. However, staying hydrated is crucial for overall health.

Waking up slightly dehydrated is common, and drinking water can alleviate symptoms like hunger, headaches, and drowsiness. [2] Consistent hydration can as well soften stool, regulate bowel movements, and reduce bloating. Adequate water intake can improve skin appearance by reducing dryness.

Some individuals may experience a temporary drop in weight after a bowel movement, but this is primarily due to the loss of waste, not a direct effect of the water itself. If hot water replaces sugary, high-calorie beverages, it can contribute to more sustainable weight loss. [2]

Cultural Significance

In China, drinking hot water is more than just a health practice; it’s a cultural tradition. It’s believed to maintain balance in the body, according to the principles of Yin and Yang, and to promote the flow of Qi (vital energy). [3] Hot water is thought to improve blood circulation, dilate blood vessels, and enhance metabolism, particularly during colder months. [3] The trend’s recent surge in popularity, as seen on TikTok, reflects a broader interest in Eastern medicine and Chinese culture. [4]

Key Takeaways

• Drinking hot water is a long-standing tradition in Traditional Chinese Medicine and Ayurveda.
• While scientific evidence is limited, hot water may aid digestion and relieve bloating.
• Staying hydrated is crucial for overall health, and hot water can be a pleasant way to increase fluid intake.
• The cultural significance of hot water in China adds another layer to its appeal.