Помогите ответить на два вопроса по этому тексту People need to

Помогите ответить на два вопроса по этому тексту
People need to be active to be healthy. Our modern lifestyle and all the conveniences we've
become used to have made us sedentary - and that's dangerous for our health. Sitting
around in front of the TV or the computer, riding in the car for even a short trip to the store
and using elevators instead of stairs or ramps all contribute to our inactivity. Physical
inactivity is as dangerous to our health as smoking!
Add up your activities during the day in periods of at least 10 minutes each. Start slowly
... and build up. If you're already doing some light activities move up to more moderate
ones. A little is good, but more is better if you want to achieve health benefits.
Scientists say accumulate 60 minutes of physical activity every day to stay healthy or
improve your health. Time needed depends on effort - as you progress to moderate
activities, you can cut down to thirty minutes, four days a week.
Physical activity doesn't have to be very hard to improve your health. This goal can be
reached by building physical activities into your daily routine. Just add up in periods of at
least ten minutes each throughout the day. After three months of regular physical activity,
you will notice a difference - people often say getting started is the hardest part.

Вопросы :
1)Why is physical activity so important for people?
2) How can you include physical activity in your life?