During the winter months, many tend to stay indoors to avoid the cold, but a lack of sunlight for extended periods can affect both physical and mental health. Dr Bikky Chaurasia, a consultant at Kokilaben Dhirubhai Ambani Hospital in Mumbai, explains the impacts of missing sunlight over different durations.
After just one week without sunlight, the body may experience reduced vitamin D production, which is vital for bone health, immunity, and mood regulation.
Sunlight also plays a crucial role in maintaining a healthy sleep cycle, and without it, circadian rhythms can be disrupted, leading to sleep issues. Dr Basavaraj S Kumbar from Aster Whitefield Hospital in Bengaluru adds that irritability, fatigue, and mild mood swings can also occur.
Two weeks of limited sunlight may result in more noticeable vitamin D deficiencies, causing fatigue, muscle weakness, and bone discomfort.
Mood disturbances, especially in those predisposed to Seasonal Affective Disorder (SAD), can become more severe. Sleep patterns may worsen as the circadian rhythm gets further disrupted.
A month without sunlight can lead to severe vitamin D deficiency, resulting in weakened bones, compromised immunity, and muscle issues. SAD symptoms may intensify, and chronic sleep problems may persist.
To counter these effects, Dr Chaurasia recommends incorporating vitamin D-rich foods into the diet, using light therapy, maintaining a regular sleep routine, staying physically active, and staying socially connected to combat isolation and mood changes.
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