Some 8 million people die from cancer every year. Although the disease can strike at any time in a person's life, the risk generally increases with age, making greater prevalence in some countries with higher life expectancies more likely. Other factors include alcohol and cigarette consumption, availability of screening and treatment facilities, and quality of treatment. According to The Lancet medical journal, over the next two decades any reductions in infection-related cancers will be "offset by an increasing number of new cases that are more associated with reproductive, dietary, and hormonal factors" around the world.
