How much cardio do i need (minutes per day and days per week) to improve cardiovascular fitness?

How to fix water drainage problems in yard

For yokos physical fitness class she is supposed to do a certain amount of aerobic exercise what is best for her

Andrew feels good about himself. he doesn't know exactly why he is so happy, but every day he looks forward to his schoolwork and chores. "i play a game," he says. "i make a list of everything i have to get done, and then i try to finish it all before a certain time. for some reason, i feel great when i beat my time." based on this information, why is andrew happy? he gets a proper amount of sleep he eats healthy meals he has a strong family support group he regularly meets his own goals