Cancer rates among young adults are increasing worldwide, raising concerns among health experts and researchers. While cancer remains one of the leading causes of death globally, recent studies show that certain types of the disease are becoming more common in people under the age of 50.
A new study has identified accelerated biological aging as a potential reason behind this troubling trend. Researchers found that individuals born during the 1980s and 1990s appear to experience faster biological aging compared to previous generations, which may contribute to a higher risk of developing cancer at a younger age.
Unlike chronological age, which is based on a person’s date of birth, biological age reflects how well the body and its organs are functioning. Factors such as genetics, lifestyle habits, diet, physical activity, and environmental exposures can all influence biological aging.
The research, conducted by researchers at the Washington University School of Medicine, compared biological aging patterns among people born between 1965 and 1969 and those born between 1990 and 1999. The findings showed that younger generations are aging biologically at a faster rate, with the effect being more noticeable in men than women.
According to the study, a larger gap between biological age and actual age is associated with a greater risk of several cancers, including lung, digestive system, and colorectal cancers. Between 1990 and 2019, cancer cases among people under 50 increased by approximately 24 percent, with colorectal cancer emerging as one of the fastest-growing forms of the disease in younger adults.
Researchers also found that people born in the 1990s face a significantly higher risk of colorectal cancer compared to individuals born decades earlier. Possible contributing factors include earlier puberty, rising obesity rates, increasing cases of diabetes, and other health conditions that may accelerate biological aging.
The study further suggests that aging in specific body systems may play an important role in cancer development. An older immune system may increase overall cancer risk, while accelerated aging of fat tissue appears to be linked to a higher likelihood of colorectal cancer. Researchers emphasized that more studies are needed to understand how environmental and lifestyle factors influence cancer risk and how effective prevention strategies can be developed in the future.
