biological rhythm

Scientific studies on animals and humans have revealed that genetic, neurotransmitter, neurohormonal, biological rhythm and possibly even viruses can cause people to become depressed.

Medication is often prescribed to target the process of neurotransmission in depressed patients. Abnormal levels of neurotransmitters can cause depressed emotions in people. Neurotransmitters have different effects on different areas of the brain, resulting in varying emotions.

When you are not depressed and your nervous system functions properly, the following usually happens. Your nerve receives a signal from its environments and when the threshold level is reached, these electrical signals are transmitted to other neurons, triggering a response accordingly.

When you feel depressed, this process of neurotransmission is disrupted when the level of neurotransmitters deviate from the norm.

Furthermore, an abnormal level of hormones in your body also contributes to your depressed mood and enhances suicidal thoughts. For instance, a lack of thyroids in your body leads to depressed emotions and a lag in thinking process. However, not all who feel depressed suffer from a lack of thyroids. Imbalance in other hormonal systems such as the adrenal gland, growth hormone and sex hormones may also cause you to be depressed. Deviation in the daily levels of adrenal hormones could also cause you to feel depressed.