Exercise

The physical benefits of exercise are well known and include:

·         Prevention of heart disease and diabetes

·         Reduction of blood pressure and cholesterol

·         Weight loss

·         Improvement in bone strength

Exercise also has mental benefits, particularly for sleep and depression.

To see these health benefits, you needn’t exercise excessively. The recommended amount for general and mental health is:

·         At least 30 minutes of moderate intensity exercise per day, such as brisk walking, swimming, bicycling, aerobics class or dancing.

That activity can also be spread out in 10 minute chunks.  If you can’t exercise daily, you can still get good results from an every-other-day routine.

This kind of exercise has been shown to help depression in several studies. One study found that people who exercised while taking antidepressants were less likely to become depressed again after recovery.  In fact, exercise is known to cause the same changes in the brain as antidepressants do (it causes brain growth in the memory/emotion center, or hippocampus).

To improve sleep, try exercising in the afternoon.

If your goal is to lose weight, you may need to exercise longer (60 minutes a day instead of 30 minutes).

The effects of exercise on other conditions are not as well known, but some research suggests it may also be beneficial for:

·         Anxiety and panic disorder

·         Chronic fatigue syndrome

·         Chronic pain

·         Smoking cessation

Precautions: Exercise may not be helpful for everyone, and for some it may not be safe.  If you have medical problems, particularly of the bones, muscles, heart or lungs, consult your physician before taking on an exercise program.  Also talk to your doctor if you have symptoms of medical illness including chest pain, loss of balance, shortness of breath, dizziness and physical pain.

For more reading…

National Center for Disease Prevention Exercise Program.

 

Scientific References

Blumental JA, Effects of exercise training on older adults with major depression. Archives of Internal Medicine 1999; 159: 2349-56.

Lawlor, DA. The effectiveness of exercise as an intervention in the management of depression: systemic review and meta-regression analysis of randomized controlled trials. British Medical Journal 2001; 322:1-8.

Broocks A. Comparison of aerobic exercise, clomipramine and placebo in the treatment of panic disorder. American Journal of Psychiatry 1998; 155:603-9.

Powell P. Patient education to encourage graded exercise in chronic fatigue syndrome. British Journal of Psychiatry 2003; 184:142-6.

Ussher MH. Does exercise aid smoking cessation? A systematic review. Addiction 2000; 95(2):199-208.

Armstrong K. The effectiveness of a pram-walking exercise program in reducing depressive symptomatology for postnatal women. International Journal of Nursing Practice. 2004 Aug;10(4):177-94.

—Updated 2/1/09 by Chris Aiken, MD

 

Bicycle

Lyonel Feininger, The Bicycle Race, 1912, National Gallery of Art