The science of consciousness
Thursday, September 21, 2023
Newly Discovered Pattern of Brain Waves can Signal Depression's Presence
Friday, August 25, 2023
The role of beauty in the arts
Thursday, August 17, 2023
What is Electrogenetics? One Day we may Control Our Genes With Wearables
Image by brgfx on Freepik
Friday, June 23, 2023
Depression, the state of current understanding
Depression can be a profoundly distressing and isolating experience that engulfs one's entire being. It can feel like being trapped within themselves, cut off from the world around them. The pain can be all-consuming, making it difficult to articulate or even understand what one is going through.
It's crucial to understand that depression is not a voluntary choice. It can be overwhelming and debilitating, but there is always hope for recovery. Studies have shown that depression will almost always come to an end.
Various factors can contribute to depression, including chemical imbalances in the brain. While specific genes and neurotransmitters may play a role, it's crucial to remember that these factors do not necessarily guarantee that one will become depressed. It's frequently a combination of internal and external factors that trigger depression. Furthermore, depression is not solely psychological.
People with depression don't reliably have less serotonin activity than people without the disorder. Yet serotonin inhibitors reduce depression symptoms, possibly by increasing the circulating levels of the amino acid tryptophan, a serotonin precursor which helps regulate sleep cycles. People with a family history of depression also appear vulnerable to tryptophan depletion. For example, tryptophan and serotonin regulate bacteria and other microbes growing in the gut, and chemical signals from these microbiota could affect mood.
Other neurotransmitters, which play an essential role in memory formation, and inhibit cells from sending messages to one another, may be involved in depression. Researchers also have identified about 200 genes linked to a risk of depression but explain only about 5% of cases. Moreover, simply having the genes for depression doesn't guarantee the disease outcome because the genes must be activated by internal or external conditions.
Chronic inflammation can significantly impact mental health and even trigger depressive symptoms. Inflammation can lead to appetite loss, fatigue, and a slowdown in mental and physical activity — all symptoms of major depression. Chronic inflammation can degrade synaptic connections in neural tissue, which impede healing. The loss of connections might contribute to mood disorders. Depression can feel devastating and incapacitating, but seeking help from friends, family, and qualified professionals can provide an understanding of the symptoms and manage healing and recovery.
Image credit: Wikipedia Commons
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Copyright © 2023 by Eva Deli
Wednesday, April 26, 2023
The Nerve Net, the First Step in the Nervous System's Evolution
Comb jelly internal representation The nerve net is marked purple. Two kinds of nerve cells — sensory cells (light blue) and mesoglea neurons (yellow) exist outside the nerve net. Image credit: PAWEL BURKHARDT AND MAIKE KITTELMANN
Reference article:
P. Burkhardt et al. Syncytial nerve net in a ctenophore adds insights into the evolution of nervous systems. Science. Vol. 380, April 21, 2023, p. 293. Doi: 10.1126/science.ade5645.
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Copyright © 2023 by Eva Deli
Tuesday, April 25, 2023
Therapeutic use of Psychedelics for depression
Tuesday, April 11, 2023
How could science be different?