01. Diet: Ensure a well-balanced diet with various nutrients. Increase calcium intake through dairy products, legumes, vegetables, and seafood. Don't neglect vegetables, whole grains, fruits, and nuts.

02. Regular sleep: Seniors aged 70 and above should aim for at least 7 hours of sleep every night. Adequate sleep allows the body's organs to rest and repair, promoting longevity.

03. Moderate exercise: Regular physical activity keeps the body agile, promotes blood circulation, enhances the immune system, and prevents dementia and cardiovascular diseases. 

04. Weight control: Seniors should maintain a healthy weight within the range suggested by the Body Mass Index (BMI) calculation.

For general individuals, a BMI between 18.5 and 23.9 is sufficient. 

05. Maintaining a positive mood: Emotions can impact disease occurrence. Seniors should strive for a calm mindset, manage conflicts, maintain social interactions, and cultivate hobbies and interests.