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Study links light at night to heart changes
An American study confirms that excessive exposure to nighttime lighting negatively impacts the shape and function of the heart. It causes enlargement of the left ventricular wall and weakens the heart muscle's ability to contract, which can lead to serious health problems. The study monitored over 11,000 individuals by measuring their exposure to light at night over a seven-day period. After three years, it was observed that continuous exposure to levels of light that affect melatonin secretion leads to "heart remodeling," a weakness that may result in heart diseases. The findings indicate that reduced sleep at night and increased light exposure contribute to these changes. Therefore, doctors recommend using thick curtains and dimming lights at night to protect heart health.
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