Cancer is a disease characterized by the uncontrolled growth of abnormal cells in the body. It is the second leading cause of death in the US, accounting for 1 in every 4 deaths, and nearly 600,000 Americans were expected to die from cancer-related causes last year. Cancer can arise from various factors, including genetic mutations, environmental influences, and lifestyle choices. The disease can manifest in different forms, such as tumors or blood cancers, and it is often linked to specific risk factors, including certain infections and exposure to carcinogens.
Research continues to explore the underlying causes of cancer, with some studies suggesting that certain parasites and environmental toxins may play a role in its development. The complexity of cancer is highlighted by the fact that it often involves a combination of genetic and environmental factors, making it a multifaceted disease.