Not all stress results in hair shedding. The right sort of stress can even be good for you. Scientists have shown that this sort of stress – known as eustress – can improve your performance, motivate you to achieve, and even improve your physical health and lengthen your life.
On the other hand, negative stress – distress – can have disastrous effects on your health. This might be emotional stress, psychological stress, or long lasting (chronic) stress which either does not get dealt with or which can be overwhelming.
This distress is the problem. When you are stressed, your body releases hormones such as cortisol or adrenaline into your blood, which can be useful in the short term, but long term have damaging effects on your body’s essential systems. If you have too much stress, your body keeps producing the hormones and gets tired, run down and eventually exhausted.