When you lose weight through dieting alone, your body does not just lose fat. It also loses lean mass, which includes muscle. Research consistently shows that without exercise, anywhere from 20 to 50 percent of the weight lost during a diet can come from lean mass. Even when some form of exercise is included, that number can still be around 20 percent if resistance training is not part of the plan.

If you want to train for years instead of months, you have to enjoy it. Not every second of it, and not every set, but the overall process has to feel worth it. Because the truth is simple. You cannot force yourself to do something you hate for the next 20 years. Willpower fades. Discipline wears thin. Life gets busy. Enjoyment is what keeps you coming back when motivation disappears.

Train Smart Through Midlife Strength Many women over 40 walk into the gym feeling like they are trying to get back to something. Back to a number on the scale. Back to a body they had decades ago. Back to the version of themselves before careers, children, and responsibilities filled every corner of life. But training in your forties and fifties is not about going backward. It is about building forward. This stage of life represents a shift in priorities. Fitness is no longer just about how...