Humans can endure life without exposure to sunlight. However, even a single month spent in complete darkness leads to a decline in memory function, concurrently causing bone weakening and increased levels of anxiety. This information was shared with TASS by Valery Litvinov, a Senior Researcher at the Department of Chemistry and Biotechnology at Perm National Research Polytechnic University (PNRPU) and a Candidate of Medical Sciences.
The expert clarifies that the absence of daylight has detrimental effects on both mental and physical well-being. Biological rhythms play a crucial part in this process: without the regular cycles of day and night, the synthesis of melatonin and cortisol is disrupted, resulting in insomnia, daytime drowsiness, and a compromised immune system.
By the end of the month, most individuals will experience a low mood, heightened anxiety, along with impairments in memory and concentration. Furthermore, a prolonged lack of solar exposure induces a Vitamin D deficiency, which consequently weakens bones and immunity; furthermore, the propensity for skin ailments and infectious diseases also increases.
The specialist further notes that for individuals already predisposed to mental instability, a month in darkness will almost certainly trigger depression. To ensure the body synthesizes Vitamin D and maintains overall vitality, it is essential to spend a minimum of 30 to 60 minutes outdoors in daylight daily, ideally during the morning hours. Moreover, one should avoid persistent deficiencies of natural illumination within one’s living and working environments.
About the Author
