Will a change of diet or a reduction of stress levels prevent acne?

I noticed that I get acne flare ups during finals week.  Is there a link between stress and acne?

Usually not

Reducing stress and changing your diet will not clear up or prevent acne. There is a misconception that acne is triggered by foods such as:

• Chocolate 
• Sweets 
• Peanuts 
• Fatty foods

There is no scientific evidence that diet or stress influences acne.