timing how long it takes for your kettle to boil 1 cup (250ml) of water. looking at the power of your kettle (Watts, often found on the base of the kettle) joules = wattage x time (in seconds)
Rock climbing can help build and tone your legs and glutes. Indoor rock climbing is a sport that when properly executed, recruits every major muscle group in the body. Rock climbing is a full body workout that tones and strengthens the arms, shoulders and core muscles. You can also effectively strengthen and tone your legs and buttocks with regular indoor rock climbing sessions.
Running stairs provides an intense calorie burn, torching up to 885 calories per hour for a 130-pound person. The exercise doesn't require any special equipment or an expensive gym membership, and it helps you tone muscles throughout your lower body. Stair climbing targets muscles in your legs and hips, but light weights help bring your upper body into the workout as well.