She knows about fitness so we picked her brain. It is the men who die sooner from heart diseases, and women who get fat and weak. We all need to do both. For women, the best changes would be to leave the aerobics class before the cool-down and do 20 minutes of supersets with weights to build strength and shape.
Men can learn to move with some of the simple aerobics steps.
Teach your children well. They need to learn from young what healthy lifestyle is all about. It is very difficult for this generation, now facing health problems, to change lifetime habits of inactivity and constant consumption of fat and sugar. For 15 years I have been making women smaller, stronger, shapelier, and age-resistant through weight training. You can shape your body only in the gym.