Top 15 At-Home Exercises to Lose Weight and Build Muscle

3. HIIT Workout

HIIT is short intervals of activity and intense exercise with fast breaks in between. For beginners, start with 30 seconds of exercise and 30 seconds of rest. For advanced users, it can be set to 45 seconds of exercise and 15 seconds of rest. HIIT burns calories and improves heart health, and it is best to do it two to three times a week with rest days in between.