Many people experience weight gain despite eating carefully and following a balanced diet. In many cases, the underlying cause is not food itself, but disrupted sleep. Sleep deprivation can alter the balance of melatonin, cortisol, insulin, and metabolism, creating favorable conditions for weight gain.
Insomnia is the inability to fall asleep easily, frequent nighttime awakenings, or waking up without feeling rested. When insomnia becomes chronic:
energy levels decrease
hormonal balance is disrupted
appetite regulation weakens
All of these factors significantly increase the risk of weight gain.
When asking what is melatonin, the answer is that it is a hormone released mainly at night to regulate the sleep–wake cycle. Melatonin hormone affects not only sleep but also:
metabolic rate
fat-burning processes
appetite signaling
The main benefits of melatonin include:
deeper, higher-quality sleep
nighttime hormonal balance
reduced stress response
When melatonin levels drop, the body seeks more energy, often through increased food intake.
At this stage, Solgar Melatonin 5 mg N60 TB is commonly used as a supportive option to help restore sleep rhythm, under medical guidance.
Cortisol is known as the stress hormone. During sleep deprivation:
cortisol levels increase
the body enters a constant stress mode
fat storage accelerates
When necessary, a cortisol test can help evaluate hormonal imbalance.
When sleep is insufficient, the effectiveness of insulin decreases. As a result:
normal insulin levels may be disrupted
excess insulin may circulate in the blood
cells become less sensitive to insulin
In such cases, an insulin resistance analysis may be recommended.
When asking what is metabolism, it refers to how the body produces and uses energy. During sleep deprivation:
metabolism slows down
fewer calories are burned
weight gain risk increases
To support energy metabolism and nervous system function, Solgar Vitamin B1 thiamin 100 mg N100 tab is often considered as part of nutritional support, when appropriate.
With insufficient sleep:
the effect of appetite-stimulating vitamins may feel stronger
appetite-suppressing factors become less effective
As a result, people who sleep poorly tend to eat more frequently and in larger portions during the day.
Yes. Long-term sleep deprivation disrupts hormonal balance and can directly contribute to weight gain.
Yes. Reduced melatonin slows metabolism and increases appetite.
Stress factors should be reduced, and a cortisol test may be performed under medical supervision.
Yes. Poor sleep reduces insulin sensitivity and increases the risk of insulin imbalance.
Sleep deprivation is more than just feeling tired—it is a serious factor affecting the hormonal system. When the balance between melatonin, cortisol, insulin, and metabolism is disrupted, weight gain becomes more likely. Maintaining a healthy sleep routine, managing stress, and, when needed, using supportive products such as Solgar Melatonin 5 mg N60 TB and Solgar Vitamin B1 thiamin 100 mg N100 tab appropriately can play an important role in weight control and overall health.
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