In order to lose weight you should: Watch your daily calories
Make sure you exercise a few times a week
Make sure to stay active every day
All of the above

How can a person  best  reduce the risk of injuries on the road?  

During the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.

The first step in treating water from a river or lake is usually