Hair loss is a widespread problem affecting both men and women. Although there are many different causes of hair loss, the most common cause is a genetic predisposition. Other possible causes include stress, hormonal imbalance, poor nutrition, certain medications, and illnesses such as thyroid disorders. Some people also suffer from androgenetic alopecia, which is due to an overproduction of testosterone. This condition can be treated with medication. Other causes of hair loss may include: excessive heat or cold, chemical treatments such as bleaching or dyeing, severe scalp inflammation, trauma or injuries to the scalp, and poor blood circulation. In some cases, psychological problems such as depression or anxiety disorders can also lead to hair loss. If you suffer from hair loss, you should therefore always consult a doctor to find out the possible causes and be treated accordingly.