There are many different strategies for maintaining one's health; sometimes it gets overwhelming to focus on several issues all at once. There are five top research backed ways to remain healthy, both physically and mentally and these are to exercise, manage stress, have proper nutrition, get adequate sleep, and stay active both mentally and socially.
The benefits of regular exercise for people of all ages have been well established. Regular exercise is associated with decreased death and/or disability from pathologies such as cardiovascular disease, diabetes, arthritis, cancer, and pulmonary disease. It is also associated with positive psychological benefits such as decreased depression and improved quality of life.
Learn more about the benefits of regular exercise 
Everybody experiences stress. It's the body's natural reaction to tension, pressure and change. A certain amount of stress makes life challenging and less boring, but too much can be bad for you– both physically and mentally. Prolonged stress can lead to accidental injury or serious health problems. For the sake of your health, safety and happiness, it's important to recognize and manage stress before it does you harm.
Your body changes as you age, but those changes don't have to lead to health problems
or limit your independence, energy or enthusiasm for the activities you enjoy. By
making healthy lifestyle choices, you can prevent certain health problems and keep
chronic conditions from getting worse. Combined with physical activity, eating nutritious
foods in the right amounts can help keep you healthy.