Cancer disease arises when abnormalities in cell genetics produce fast division. These mutations may be inherited or triggered by environmental influences.
What is Cancer?
Cancer encompasses a wide range of diseases characterized by the fast division of abnormal cells. These cells can penetrate surrounding tissues and organs.
These fast-growing cells often form tumors and disrupt normal bodily functions. As a leading cause of global mortality, cancer swallowed nearly 1 in 6 lives in 2020, as reported by the World Health Organization (WHO).
Continuous efforts by experts are dedicated to exploring innovative cancer treatments.
Causes of Cancer
The main reason for cancer is changes in the DNA of cells. These changes can be hereditary or develop post-birth due to environmental factors.
External factors, known as carcinogens, contribute to these mutations and can include:
- Physical carcinogens such as radiation and ultraviolet (UV) light.
- Chemical carcinogens like cigarette smoke, asbestos, alcohol, air pollution, and polluted food and water.
- Biological carcinogens such as viruses, bacteria, and parasites.
According to a study, approximately 33% of cancer-related deaths can be attributed to factors like tobacco use, alcohol consumption, high body mass index (BMI), insufficient intake of fruits and vegetables, and poor physical activity.
Risk Characteristics of Developing Cancer
Some factors can elevate your chances of developing cancer. These risk factors may include:
- Smoking or using tobacco products.
- Excessive alcohol consumption.
- Unhealthy eating habits, such as a diet high in red and processed meats, sugary beverages, salty snacks, starchy foods, and refined carbohydrates.
- Lack of physical activity.
- Exposure to air pollution.
- Radiation exposure.
- Exposure to UV light without protection, like from sunlight.
- Infection by specific viruses like Helicobacter pylori, the human papillomavirus (HPV), hepatitis B, hepatitis C, HIV, and the Epstein-Barr virus, which is responsible for infectious mononucleosis.
The likelihood of developing cancer tends to rise with age. Typically, the risk increases until around the ages of 70 to 80, as noted by the National Cancer Institute (NCI).
A review from 2020 suggests that this trend might be attributed to:
- Less effective cell repair mechanisms as individuals age.
- Accumulation of risk factors throughout life.
- Duration of exposure to carcinogens.
Additionally, certain health conditions associated with inflammation, like ulcerative colitis, a chronic inflammatory bowel disease, may also heighten the risk of cancer.
Types of Cancer
Cancers are named based on their origin and the type of cells involved, regardless of whether they metastasize to other parts of the body. For instance, lung cancer that spreads to the liver remains classified as lung cancer.
Additionally, there are clinical terms used for various general cancer disease types:
- Carcinoma originates in the skin or the tissues lining other organs.
- Sarcoma affects connective tissues like bones, muscles, and blood vessels.
- Leukemia arises in the bone marrow, which produces blood cells.
- Lymphoma and myeloma affect the immune system.
Additional Specific Types of Cancer Disease
Explore more about various types of cancer through the following resources:
- Liver cancer
- Uterine cancer
- Rectal cancer
- Bone cancer
- Prostate cancer
- Breast cancer
- Skin cancer
- Pancreatic cancer
- Endometrial cancer
- Myeloma
- Colon or colorectal cancer
- Oral cancers
- Bladder cancer
- Laryngeal cancer
- Lung cancer
- Leukemia
- Brain cancer
- Cervical cancer
- Kidney or renal cancer
- Mesothelioma
- Gallbladder cancer
- Ovarian cancer
- Vulvar cancer
- Stomach or gastric cancer
- Testicular cancer
- Esophageal cancer
- Thyroid cancer
- Small intestine cancer
- Heart cancer
- Vaginal cancer
- Duodenal cancer
- Ear cancer
- Penile cancer
- Appendix cancer
- Lip cancer
- Lymphoma
- Spleen cancer
Why Early Detection of Cancer is Suggested?
Detecting cancer in its early stages is known as early detection. It can significantly improve treatment outcomes and reduce death rates. Screening tests for cancer can aid in the early detection of various types of cancer. These screenings may identify signs of cancer such as:
- Cervical cancer and prostate cancer screenings may be part of routine check-ups.
- Lung cancer screenings are recommended for individuals with specific risk factors.
- Dermatologists can conduct skin cancer screenings for those with skin concerns or higher risk.
- Starting at age 45, regular screenings for colorectal cancer, often through colonoscopies, are advised by the American Cancer Society (ACS). Some at-home testing kits may also detect certain forms of colorectal cancer.
- Mammograms, recommended for women aged 45 and older (but can begin at 40), are pivotal for breast cancer screening. Early screenings may be suggested for individuals at higher risk.
It’s crucial to take your doctor’s advice on cancer screenings, especially if you have a family history or elevated risk factors.
Signs and Symptoms of Cancer Disease
Being observant about cancer symptoms can help in timely diagnosis and treatment. Some cancers may remain silent until advanced stages.
Common signs and symptoms of cancer include:
- Presence of lumps or abnormal growths
- Unexplained weight loss
- Fever without apparent cause
- Persistent fatigue
- Pain that is persistent or unexplained
- Night sweats
- Digestive changes
- Changes in skin appearance
- Persistent cough
Each type of cancer may manifest its unique warning signs. If you’re experiencing any unusual symptoms, it’s wise to consult a healthcare professional.
How to Prevent Cancer Disease?
Understanding the factors that contribute to cancer can help you adopt a lifestyle that reduces your risk of developing this disease.
To minimize your chances of developing cancer, consider these preventive measures:
- Steer clear of tobacco and secondhand smoke.
- Limit consumption of processed meats.
- Adopt a diet rich in plant-based foods, lean proteins, and healthy fats, such as the Mediterranean diet.
- Exercise moderation or abstain from alcohol consumption.
- Maintain a healthy body weight and BMI.
- Engage in regular moderate physical activity for 150 to 300 minutes per week.
- Protect yourself from the sun by avoiding direct exposure and using broad-spectrum sunscreen, hats, and sunglasses.
- Refrain from using tanning beds.
Receive vaccinations against viral infections linked to cancer, like hepatitis B and HPV. Regular check-ups with your doctor enable early detection of potential cancers, improving the likelihood of successful treatment.
Final Thoughts
Cancer contains a collection of severe illnesses triggered by genetic alterations within your cells. These abnormal cells may multiply rapidly, forming tumors.
Several risk factors, including smoking, excessive alcohol consumption, sedentary lifestyle, poor dietary habits, high BMI, and exposure to certain viruses and bacteria, may contribute to cancer development.
Regular screenings play a crucial role in early cancer detection, facilitating more effective treatment interventions. Treatment strategies and prognoses vary based on the cancer type, its stage, as well as the individual’s age and overall health.