The number of people around the world who have cancer is "rapidly growing," with 18.1 million new cases and 9.6 million deaths in 2018 alone. By the end of the century, cancer will be the No. 1 killer globally, a new report reports.

The report was released Wednesday by the World's Health Organization's International Agency for Research on Cancer, CNN reports.

One in eight men and one in 11 women will die from the disease the researchers estimate.

The reasons

The main reasons for this tendency according to the team are the following:

• The global population is growing, and more people means more cancer.
• The population is also aging, and cancer risks grow as you age.
• The numbers also look worse because in many countries, stroke and heart disease deaths are declining

The top five most deadly

Lung cancer is the most deadly, with 1.8 million deaths in 2018 according to the report. Colorectal comes in second for mortality. Stomach cancer (783,000 deaths) and liver cancer (782,000 deaths) are the third and fourth most prevalent cancer deaths in 2018.

The incidence rate for all cancers combined was about 20% higher in men than in women, and deaths were nearly 50% higher for men.

Lung cancer is the most common cancer among men with 14.5% of the estimated cases. For women, breast cancer is the most commonly diagnosed. About one in four new cancer cases diagnosed in women worldwide occurs in the breast, the study reports.