Height has traditionally been viewed as an indicator of health and achievement, but recent research has indicated that there are latent hazards associated with height. Although taller individuals tend to have a lower incidence of both cardiovascular diseases and diabetes, they also have a higher incidence toward some forms of cancer.
This relationship between height and cancer is not merely coincidental; it is moulded by a blend of genetics, nutrition, and development. By understanding this relation, and by ensuring the practice of early detection, taller people in general can be more preventive about their health.
The correlation between height and cancer risk
According to a report from the World Cancer Research Fund, there is strong evidence suggesting that height is associated with an elevated risk of the following cancers:
• Pancreatic cancer
• Large bowel cancer
• Uterine (endometrial) cancer
• Ovarian cancer
• Prostate cancer
• Kidney cancer
• Skin cancer (melanoma)
• Breast cancer (both premenopausal and postmenopausal)
A recent study of 17 cancer types revealed a surprising link: the taller you are, the higher your cancer risk. While the exact reasons behind this connection are still unclear, research suggests that height may be an indicator of excessive nutrition, particularly during periods of rapid growth.
Growth pathways and cancer risk
Height is influenced by multiple variables, such as genetics, diet, and health status during childhood. Evidence indicates that overfeeding–typically referring to a very-high-calorie diet that contains excessive amounts of animal protein may hyperactivate growth-regulatory systems such as the insulin-like growth factor (IGF) cascades.
The activation of the IGF-1 and IGF-2 systems is coupled with a variety of physiological adaptations, including:
• Improved Insulin Sensitivity: Taller people tend to have less fat in the liver, making them more sensitive to insulin, thereby reducing the risk of diabetes, and cardiovascular disease.
• Increased Cancer Risk: The same growth pathways that stimulate cell development and repair may also contribute to the unchecked cell growth seen in cancers such as breast cancer, colon cancer, and melanoma.
While being tall can be attributed to having metabolic advantages, such as reduced fat deposition in the liver, the trade-off may include an elevated risk for certain cancers due to sustained activation of growth-related signals.
Symptoms to watch out for
Height per se is not cancer causative, however, taller subjects possessing increased cells automatically increases the chance of cancer-causing mutations. It is important to look out for early signs and symptoms that could point toward cancer, e.g.
• Sudden, unintentional weight loss
• Persistent Fatigue
• Changes in Skin or Moles
• Abnormal Bleeding
• Chronic Pain
Treatments and management
Treatments for cancer differ based on tumor type and stage but generally consist of:
• Surgery: Often the first line of treatment to remove cancerous tissues.
• Chemotherapy: Utilises drugs to selectively kill rapidly dividing cancer cells (tk).
• Radiation Therapy: Uses high-energy rays to destroy cancer cells.
• Immunotherapy: Increases the body's immunity that localizes and attacks cancer.
• Targeted Therapy: Focuses on specific molecules involved in cancer growth.
For tall individuals, early detection is key. Regular screenings for cancers with higher incidence rates, such as colon, breast, and melanoma, can significantly improve outcomes.
Vigilance is key
Although height is a non-alterable factor, we can counterbalance the risks by instituting a healthier lifestyle:
- Maintain a balanced diet low in processed foods
- Avoid smoking and excessive alcohol consumption
- Stay physically active to support overall health
- Regularly screen for cancer, particularly if you are at risk
Height may be a blessing in many ways, but understanding its potential health implications can empower individuals to take proactive steps. By staying informed and alert, one can take pride in their height while maintaining their health and safety.
Dr. Ankit Shah, Consultant - Surgical Oncology, HCG Cancer Centre, Vadodara