overtrining?

The following is an exerpt from an article on overtraining found on shapefit.com:

The Signs

• Persistent muscle soreness
  
• Elevated resting heart rate
  
• Increased susceptibility to infections
  
• Increased incidence of injuries
  
• Irritability
  
• Depression
  
• Loss of motivation
  
• Insomnia
  
• Decreased appetite
  
• Weight loss

Experiencing a loss of interest in what you once felt passion for is never fun. What causes over training?

To see improvement in ones strength and fitness they must rest. The rest period following hard training is a magical process which takes at least 36 hours to complete. By skimping on rest, complete regeneration cannot occur. If the amount of training continues to exceed the rest period, the individual's performance will plateau and decline.

I am posting this because I **NEED** to take the resting part of the equation seriously. Friday was supposed to be my rest day and I totally was cranky and nasty and went to the gym to blow it all off. But I also have totally achey legs from working to correct some form issues at boxing, so I need to give those muscles time to recover.

Big problem: Bressler's is WAY more exciting than sitting at home.... Maybe I should start a new novel...