The good thing about aerobic activity is that it includes many of the sports you probably already enjoy. Walking, biking, hiking, dancing, swimming, even basketball are all examples of aerobic exercise. Another good thing is that you can easily accomplish those two 10-minute sessions with things like taking the stairs instead of the elevator, walking around the neighborhood after work or parking your car farther away. You could even turn shopping into an aerobic activity. Check with your local mall for mall walker programs, and you'll have company.
Aerobic exercise is definitely good for cardiovascular health and fitness.
Plenty of good exercise all around the house . If you do housework or yard work, you're doing yourself a favor. The stretching and lifting housework entails is good exercise. So is work you do outside. Yard work uses many muscle groups, especially activities like planting and working in the garden.