Dry January and cancer prevention: what to know about alcohol and cancer risk

Each January, many people participate in Dry January by choosing to take a break from alcohol for the month. While the challenge is often framed around resetting habits or improving sleep and energy, it also offers an important opportunity to talk about something less commonly discussed: the connection between alcohol use and cancer risk.

Alcohol is a known carcinogen. According to leading health organizations, and highlighted in a 2025 report from the U.S. Surgeon General, drinking alcohol increases the risk of several types of cancer, including breast, colorectal, liver, mouth, throat and esophageal cancers. The risk rises with the amount of alcohol consumed, but research shows that even low levels of drinking can increase cancer risk, particularly for breast cancer.

When alcohol is consumed, the body breaks it down into acetaldehyde, a toxic chemical that can damage DNA and interfere with the body’s ability to repair itself. Alcohol can also increase inflammation, affect hormone levels and make it easier for other carcinogens, such as tobacco, to enter and damage cells. Over time, these effects can contribute to the development of cancer.

In Nevada, alcohol use is common, and understanding its impact on health is an important part of cancer prevention. Reducing alcohol consumption or choosing not to drink at all can lower cancer risk and support overall health. For some people, Dry January is a short-term reset. For others, it may prompt longer-term changes or more mindful drinking habits.

Participating in Dry January does not require perfection or long-term commitments. Even a temporary break from alcohol can lead to benefits such as improved sleep, better concentration and increased awareness of drinking patterns. From a cancer prevention perspective, fewer drinks over time means less exposure to a known cancer risk factor.

Nevada Cancer Coalition encourages Nevadans to use moments like Dry January to learn more about cancer risk and prevention. Small, informed choices — including reducing alcohol use — can make a meaningful difference in lowering cancer risk across the lifespan.

For those interested in cancer prevention, the message is simple: when it comes to alcohol and cancer risk, less is better. Dry January can be a helpful starting point for conversations about healthier habits and long-term well-being.

This article created with the assistance of AI and edited by NCC staff. This is for informational purposes only. For medical advice or diagnosis, consult a professional.