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16. Don't eat leftovers.
17. Don't wash your hair when full, don't bathe when hungry.
18. Don't wash your hair before bathing.
19. Don't exercise before bed.
20. Choosing the wrong pillow can make you feel more tired.
21. Don't sleep on stones in summer, boards in autumn, expose your navel in spring, or cover your head in winter.
22. Snoring kills hundreds of thousands of people every year.
23. Let your tears flow freely, and illnesses will naturally heal.
24. Boil water for 3 minutes after it boils.
25. Looking down at your phone puts 45 pounds of pressure on your cervical spine.
26. Crossing your legs is harmful to your health.
27. Losing 100 hairs is considered hair loss.
28. Wipe your bottom from front to back.
29. Prolonged sitting leads to many diseases.
30. Your phone is dirtier than the toilet.
16. Don't Eat Leftovers
Whether it's cold or hot food, it's not recommended to eat food left overnight. Leftovers contain high levels of nitrites, and excessive intake can easily cause poisoning. Symptoms include headache, palpitations, nausea, vomiting, diarrhea, and abdominal distension; in severe cases, it can even lead to multiple organ failure.
17. Don't Wash Your Hair After a Full Meal, Don't Bathe When Hungry
When you're hungry, blood is supplied to the central nervous system. Bathing at this time, especially a hot bath, can easily lead to ischemia and hypoxia, causing a hypoglycemic reaction. Don't wash your hair immediately after a meal either; it's best to wait an hour after eating before bathing and washing your hair.
18. Don't Wash Your Hair First When Bathing
Washing your hair first causes blood to rush to the head. This can lead to poor blood flow to the head and may trigger adverse events in patients with cardiovascular disease. The correct bathing order is to rinse your limbs first, allowing your body to adjust to the water temperature before washing your hair.
19. Avoid Exercise Before Bed
Vigorous exercise before bed can excite the brain and affect sleep quality. Instead, try gentle activities like walking, jogging, or yoga an hour after meals. These types of soothing exercises help improve sleep quality.
20. Choosing the Wrong Pillow Can Make You Feel More Tired
The cervical spine has a natural curve, so a pillow height of 8-12 cm is ideal. A pillow that's too low causes excessive blood flow to the brain, leading to swelling upon waking. A pillow that's too high leaves the cervical spine unsupported, causing neck pain upon waking.
21. Don't Sleep on Stones in Summer, Boards in Autumn, Expose Your Navel in Spring, or Cover Your Head in Winter
Sleeping with your head covered can easily cause breathing difficulties. High carbon dioxide concentrations in blankets can lead to brain hypoxia. A continuously decreasing oxygen concentration and prolonged inhalation of humid air are extremely harmful to the brain.
22. Snoring Kills Hundreds of Thousands Every Year
Data shows that 3-5 out of every 100 people snore, and one in five snorers suffers from obstructive sleep apnea syndrome. This can cause long-term oxygen deficiency, ultimately leading to damage to multiple systems throughout the body, and in severe cases, even sudden death during sleep.
23. Let your tears flow freely, and illness will naturally heal.
Tears contain a large amount of catecholamines, usually secreted by the adrenal glands. These can regulate physiological functions, thus releasing stress and soothing emotions.
24. Boil water for 3 minutes after it boils.
Tap water undergoes chlorination for disinfection during processing. Boiling the water for a short time after it boils helps the residual chlorine evaporate. Calcium is formed during boiling; the longer the boiling time, the more likely calcium will precipitate in the water.
25. Looking down at your phone puts 45 pounds of pressure on your neck.
Looking down at your phone at a 45-degree angle puts 45 pounds of pressure on the neck muscles, equivalent to a bag of flour hanging around your neck. At a 60-degree angle, this force becomes 54 pounds, equivalent to a 6-year-old child riding on your neck.
26. Crossing your legs is harmful to your health.
Crossing your legs easily leads to hunching over. This causes uneven pressure distribution on the lumbar, thoracic, and spinal vertebrae. The pelvis can cause spinal rotation, leading to excessive muscle stretching. Over time, this can result in spinal curvature or scoliosis.
27. Losing 100 hairs a day is considered hair loss.
Normal people lose about 50-100 hairs per day. However, if you lose more than 100 hairs per day for more than three consecutive months, you should be wary of hair loss.
28. Wipe from front to back.
Whether defecating or urinating, it's best to wipe from front to back. The defenses against pathogens, from strongest to weakest, are the anus, vagina, and urethra. Wiping from front to back reduces the risk of urinary tract infections.
29. Prolonged sitting leads to many health problems.
Prolonged sitting increases fat and decreases muscle mass, gradually leading to a puffy appearance. Blood pressure, blood sugar, and cholesterol will significantly increase, and varicose veins may even develop. Get up and walk around every hour to promote blood circulation.
30. Cell phones are dirtier than toilet seats.
CCTV has exposed that cell phone surfaces harbor up to 2,000 different types of bacteria, making them 18 times dirtier than toilet seats. Many people are inseparable from their phones, even eating while holding them. Wiping with alcohol wipes can significantly reduce bacteria, but it's essential to clean your hands at the same time.
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