Khaberni - Many fasting individuals suffer from headaches during the early days of Ramadan, especially in the last hours before Iftar.
However, a notable observation is that these headaches begin to gradually subside after the first week, allowing many to feel a clearer mental relief as fasting continues, and this improvement is not coincidental, but a result of a series of physiological changes that the body undergoes.
Dr. Ahmed Jalal, a gastroenterology consultant at the Egyptian Ministry of Health, says that "at the beginning of fasting, the body experiences a sudden change in meal and drink timings, which leads to a decrease in blood sugar levels, a temporary disruption in brain chemistry, and dilation or contraction of blood vessels in the head."
He adds that "these factors combined are the main reason for the headache in the early days, but after about 5 to 7 days, the body begins to adapt to the new pattern."
One aspect of this adaptation is "blood sugar stabilization"; as fasting continues, the body improves the regulation of blood sugar levels and relies more on alternative energy sources such as fats.
Dr. Jalal says: "This stabilization reduces the sharp fluctuations that used to stimulate headaches initially, especially among those accustomed to consuming sugars or frequent meals."
Another cause of headaches in the first week is the withdrawal from caffeine for those who regularly consume coffee or tea.
Dr. Jalal says: "After several days, the brain adapts to the absence of caffeine, and the blood vessels in the head stabilize, reducing headaches linked to dependence on stimulants, which is why many notice the complete disappearance of headaches after surpassing the initial days."
Fasting also imposes a new rhythm of sleep and wakefulness, and over time, the biological clock begins to stabilize.
Dr. Jalal says that "this balance reflects on the regular secretion of hormones, improved sleep quality, reduced headaches associated with stress and lack of rest."
In the early days, dehydration may be a direct cause of headaches, but with daily fasting experience, the fasting individual learns to drink adequate amounts of water between Iftar and Suhoor, distributes fluids better, and reduces fluid loss during the day, which contributes to a decrease in headache episodes later on.
As a result of all these changes, as Dr. Jalal clarifies, "after the first week, the brain stops sending exaggerated alarm signals, enters a state of energy efficiency, which reduces neural tension, and alleviates headaches associated with mental and nervous stress."
