Running, jogging and swimming are all good for building endurance. You just keep at it on a regular basis, ideally two or three sessions a week, and try and go a little further each time.
Define "fit"... BMI? Strength? Endurance? Speed? A 55 year old can certainly lower his BMI to whatever he wants. A 55 year old can also build muscle mass and strength if he is dedicated. A 55 year old can improve his endurance but will probably have trouble matching the natural ability of a younger man. A 55 year old will probably have trouble developing as much speed as a younger man.
That all depends on the height and build of the female. Link below.
If you're talking about thinks like muscular endurance, then no. Usually, a 65-year-old is much more weak than a 17-year-old
no
What is a normal cholesterol for a 51 year old female
no :) aslong as they dont have sex.
whats the calorie in take on a 39 year old female?
If the parents have given the female permission.
A yearling can be a male or female. A yearling, as defined by wikipedia, is an animal that is a year old.
what is normal cholesterol level for 50 year old female
No.
What is the recommended caloric intake for a 14 year old female?