Exercises that help you gain weight include squats, pushups, pull-ups, deadlifts, and many other strength training movements.

As you lose weight your fat cells become more efficient at utilizing energy from the food you eat which can lead to gaining weight as fat stores, even though your energy intake may remain the same.

To lose weight, exercise more or eat fewer calories than is recommended. To gain weight, increase the number of calories you eat while maintaining a moderate activity level. Read more about making smart food choices and find recommendations of how much to eat, organized by activity level.

Fluid Retention: Intense exercise, especially when you're new to it, can cause temporary fluid retention in your muscles. This can lead to a temporary increase in weight. This is often referred to as ``water weight'' and is usually temporary.