It's more than just a number on the weighing scale!

A new study explains why

Being overweight is often linked to diabetes and heart problems. But is that the whole story?

NO!

A new international study has raised fresh concerns. Researchers say excess body weight may result in much bigger health issues than people can actually realize.

After reviewing 226 studies involving 1.5 million cancer cases, scientists found a worrying pattern.

People with a higher Body Mass Index (BMI) are more likely to develop 19 types of cancer.

It was published in the journal _Nature Metabolism_ on June 15, 2026. The study also linked obesity to bladder cancer, blood cancer, immune system cancer (non-Hodgkin lymphoma), and brain tumors.

Why does this happen? Experts say excess body fat affects hormone levels. It can also cause long-term swelling and affect the normal body functions. These changes may help cancer cells grow with time.

Researchers also found that the impact of obesity can differ from person to person. Some cancers are more common in women, while others are more common in men. It also varies across different regions of the world, suggesting that lifestyle, genetics and environment might play a role.

For Example, the risk of bowel (colorectal) cancer was higher in men, while gallbladder cancer showed a stronger presence in women. This suggests that factors like gender, lifestyle, and body composition may influence the risk.

Another key cause is different geographical regions. A study found that women in East Asia with a higher BMI faced nearly twice the risk of breast cancer after menopause compared to women in Europe. More studies are needed in regions of South Asia and Africa to better understand how obesity affects different populations.

But the catch is - Obesity is Preventable! Eating Healthy. Staying active. Sleeping well. Also, doing health check-ups monthly lowers the risk. As obesity continues to rise, experts suggest small lifestyle changes today could make a huge difference tomorrow!

This report is based on research, published in the peer-reviewed journal _Nature Metabolism_ and reported by Down to Earth, an Indian Magazine known for its storytelling technique of environment, health and science.