Adopting healthier lifestyle habits could prevent a significant number of cancer cases, according to health experts. Oncologists emphasize that daily practices such as smoking, maintaining a poor diet, neglecting exercise, excessive alcohol consumption, inadequate sleep, and extended periods of sitting can greatly influence one’s long-term risk of developing cancer. Tobacco use, in particular, is cited as the leading preventable cause of cancer across the globe. Smoking is not only associated with lung cancer but also with cancers of the mouth, throat, bladder, kidney, pancreas, and oesophagus. Non-smokers are also at risk due to passive smoking. However, experts point out that quitting smoking can lead to a rapid decrease in cancer risk, with noticeable benefits emerging within a few years.
Obesity is identified as another significant risk factor, linked to several types of cancer such as breast, colon, kidney, endometrial, and oesophageal cancers. Carrying excess body fat can lead to increased inflammation and hormonal changes that may promote tumour growth. Incorporating regular physical activity into one’s routine is recommended to potentially lower cancer risk. Health professionals suggest engaging in at least 150 minutes of moderate exercise per week, such as brisk walking, cycling, or light workouts. Exercise has been shown to reduce inflammation, improve hormonal balance, and support overall metabolic health.
Beyond physical activity, the amount of time spent sitting each day is also a concern. Even for those who exercise regularly, prolonged sitting can elevate the risk of colorectal and endometrial cancers. Diet plays a crucial role in cancer prevention too. Experts recommend reducing intake of processed meats, including sausages, bacon, and deli meats, which have been linked to an increased risk of colorectal cancer. High consumption of red meat is also associated with a higher risk of bowel cancer. Meanwhile, diets that are high in fibre, vegetables, fruits, healthy fats, and whole foods may contribute to lowering cancer risk. Cruciferous vegetables like broccoli, kale, and cabbage are noted for their compounds that may bolster the body’s natural defense mechanisms.
Alcohol consumption is another critical factor, with health experts warning that even moderate drinking can increase the risk of breast, liver, and colorectal cancers. In addition, lesser-known risk factors include excessive sun exposure, use of tanning beds, poor sleep patterns, disrupted sleep cycles, long-term night-shift work, and exposure to harmful environmental substances such as radon gas. Health professionals stress that preventing cancer does not require immediate, drastic changes. Small but consistent improvements, such as ceasing smoking, reducing processed foods and alcohol, staying active, protecting oneself from too much sun, and ensuring adequate sleep, can significantly lower the risk of cancer over time.
Regular health screenings and medical check-ups are also emphasized as important measures for early detection and prevention of cancer. By prioritizing consistent, manageable lifestyle changes, individuals can make strides in reducing their long-term cancer risk.