Many cancers could be avoided by making healthy choices like eating well and exercising. For women, about 4 out of 10 cancers might be prevented this way, and for men, it's about 6 out of 10.

Some cancers can be prevented, and this happens differently for men and women around the world. For example, about 30% of cancers in women and 45% in men could be avoided, with numbers changing depending on where you live.