Final answer:
The most effective strategy against cancer and heart disease is prevention, emphasizing the vital role of healthy lifestyle choices and the management of behavioral risk factors.
Step-by-step explanation:
The best weapon against cancer and heart disease is prevention. Key factors include avoiding lifestyle choices such as smoking tobacco, maintaining an unhealthy diet, and leading a sedentary lifestyle.
These are some of the most significant, yet preventable, environmental risk factors for cancer. Making healthy lifestyle choices, like not using tobacco, eating right, getting adequate exercise, and avoiding obesity could prevent a substantial percentage of cancer and cardiovascular disease deaths.
Additionally, managing and reducing behavioral risk factors can significantly lower the risk of non-infectious diseases like cardiovascular diseases, diabetes, and certain types of cancer.