Why should one run? Because...

• The beat volume of your heart increases.
• Your pulse decreases at same work.
• You get more blood vessels in your muscles.
• Your blood vessels strengthens.
• Your colesterol level decreases.
• Your blood pressure decreases.
• You get a better oxygen absorption capacity.
• You produce less lactic acid at same work.
• Your muscle strength increases.
• Your joints, ligaments and tendons strengthens.
• The density of your skeleton increases.
• Problems with your back are prevented and mitigated.
• Your stomach and guts work better.
• You long for healthy food.
• The tendency of your thrombocytes to stick to each other decreases.
• Your sensitivity to insulin decreases (less risk of diabetes).
• Your stamina improves.
• You can stand heat better.
• Your metabolism increases.
• Your immune defence strengthens.
• Your body learns how to burn fat.
• Healing processes of your body get faster.
• Your body weight gets normalized.
• You sleep better.
• You can stand pain better.
• The risk of many deseases is reduced, among them cancer, diabetes and Alzheimer.
• Your intelligence improves.
• Running has a strong anti-depressive effect.
• You feel stronger, brisker, steadier, healthier and happier.
• You can transport yourself quickly without using any vehicle.
• It is fun and feels good to run, especially when you are fairly trained.

...so how can anybody do without running?