Hair loss can be triggered by too much physical stress and chronic disease. Alopecia, hormonal changes, pregnancy and medications can also cause your hair to fall out.
Psychological and mental stress will prompt the body to manufacture and release excessive cortisol, which will cause adverse changes in thyroid and adrenal hormones. Too much androgen is also created.
"If you experience hair loss due to stress then the best way to beat it would be to take away your stress. Find a way to not worry too much or at least make sure that you don’t overdo it. The more you cause mental stress to yourself, the more your body will pump cortisol in your system. Maybe you can find some simple activities that will help you overcome your stressful situation. There are plenty of effective ways on how to beat stress, all you need to do is actually go for it."