Exercise Medical experts suggest a minimum of 30 minutes of physical activity per day. That's just a short bike ride to work or shop. Biking to work allows you to integrate exercise into your daily routine, rather than struggling to fit in a workout before or after work. Then there's the value of your time. It takes about 5 minutes or 5 miles for a vehicle's pollution control system to start working.
Air quality are problems are worst in the summer, when sun and high temperatures create more ozone.
The areas where it's easy to bike to work and shop are also the easiest on the landscape. Compact development preserves farmland, is more energy efficient, and reduces pressure on natural areas. It s not your imagination that you drive more and spend more time behind the wheel every year. These trends have been increasing steadily, in fact, miles driven to go shopping and run errands have more than doubled since 1969. All that driving is stressful.