How to do fitness exercise will be more healthy?

I think do fitness exercise should be based on their own age and their own physical condition to do appropriate exercise, will be beneficial to health, such as young people in good physical condition, you can run, girls do yoga, boys can do to do the instrument, the elderly according to their own conditions, appropriate strolling walks, every day the best in the morning at nine o'clock to ten o'clock, this stage in the outdoor walk, sunshine, two and a half to three and a half in the afternoon, this time in the outdoor activities, so are conducive to health. Two and a half to three and a half in the afternoon, this time in the outdoor activities, so that are conducive to health, in short, fitness according to their own conditions, to the right amount of adherence to the daily exercise, so that the fitness movement will be more healthy.