Many people love to stay in bed on cold winter days, but even when the weather warms up in spring, many still enjoy sleeping in. Loving to sleep in during the spring season could put you at risk for the following 5 major diseases!
1. Increased susceptibility to respiratory diseases.
The air in bedrooms is most polluted in the morning. Even with partially opened windows, some air remains unventilated. The contaminated air contains a large amount of bacteria, viruses, carbon dioxide, and dust, all of which can affect the respiratory system's ability to fight off diseases. Those who stay indoors and sleep excessively often experience throat pain.
2. Impairs bodily functions.
For those who sleep in, the sleep center in the brain stays in an excited state for a long time, while other nerve centers are inhibited for too long. As a result, the function of restoring activity becomes relatively slow, leading to feelings of lethargy.
3. Affects limbs.
Engaging in normal activities after waking up can increase muscle tension and improve blood flow to muscles. It also helps eliminate metabolic byproducts that accumulate in muscles overnight. For those who sleep in, their muscles miss out on this opportunity for activity. Consequently, they often feel weak legs, discomfort in the lower back, and overall body fatigue upon waking.
4. Affects digestive function.
People who stay in bed cannot eat meals on time, causing the intestines to undergo hunger-induced peristalsis and disrupting the regular secretion of gastric juices, thereby affecting digestive function.
5. Leads to physical weakness.
When people engage in physical activity, heart contraction strengthens and blood output increases; when resting, heart rate, contraction strength, and blood output decrease. If one sleeps for extended periods, it disrupts the heart's rest and exercise rhythm. The heart rests too much, weakening its contraction ability. Even slight activity causes discomfort, leading to a vicious cycle where one has to lie down again, ultimately resulting in physical weakness.
(Note: This translation retains the original meaning as closely as possible, though some parts were slightly rephrased for clarity.)
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