• Swimming is one of the few exercises that uses nearly all your muscles in your body
• Keeps your heart rate up without a lot of stress on your body
• Build muscular and cardiovascular strength, as well as your endurance 
• Is a calming and relaxing form of exercise
  
• Swimming has been found to help reduce anxiety and depression - check out this article from PsychCentral
• Stress reducer
• Improve: balance, posture, coordination and flexibility
• Is a great low impact exercise for injuries
• PLUS pools can be found just about anywhere 

Even if your aren't a swimmer, just getting in the swimming pool and walking back and forth in the shallow end provides a great low impact, high resistance exercise. Whatever your swimming skill set, swimming can provide a benefit. 

Of course, before starting an new exercise routine, you should check with your doctor or health care provider. But swimming just might be the ticket you need to feeling better.