We've all seen the relationship between stress and acne flare-ups. What's going on here? When you are under high stress, your body excretes vitamin C, B vitamins, potassium, and magnesium through your urine. These nutrients are essential for hormonal balance and without them your oil glands begin to act up more than usual.

Stress also causes your body to excrete a surge of hormones like cortisone and adrenaline throwing hormones out of balance and putting an added strain on your liver (already busy with filtering excess androgens from the blood).

What's more, stressful emotions can weaken your liver and immune system and cause acidic buildup in your body. This buildup causes the blood to become thick and sludgy, limiting oxygen supply to the skin's cells—also important for clear skin .

During time of high-stress, it is important that you supplement with extra B vitamins, vitamin C and magnesium. Your reaction to stress is equally important. Research shows that the chemical effects of stress can be greatly mitigated if you try to have a positive perspective of the stressful event or situation.

So be cool. Despite how much you may want to ace that exam or impress your boss (and despite how chaotic life may seem at times), know that everything will work out for the best. You are a confident, capable human being. Do not define your self-worth by any external measure.