1. Avoid Exposure to Pesticides
A recent study published in the American Science Journal found that exposure to pesticides during pregnancy not only harms the health of the mother but can also affect the brain development of the unborn child. Even moderate pesticide exposure during pregnancy can significantly impact the fetus, altering brain structure and potentially affecting the child's intelligence later in life.
In addition to pesticides, pregnant women should avoid exposure to various chemicals, such as insect sprays, rodent poisons, and others. The fumes from paints, paint thinners, and varnishes used for wood finishes are not only harmful to the baby's brain development but also increase the risk of preterm labor. For a healthy pregnancy, expectant mothers should be cautious and eliminate pesticides and other chemicals from their environment and daily life.

2. Avoid Harmful Beverages
Alcohol, beer, and any beverages containing alcohol should be avoided during pregnancy. Consuming these drinks can lead to fetal alcohol syndrome, which may result in physical or mental defects. Additionally, caffeinated beverages such as coffee and tea should be avoided. These substances are addictive and can be very harmful to the unborn child.
Studies have shown that frequent alcohol consumption can lead to miscarriage. During pregnancy, alcohol enters the mother's bloodstream and passes to the fetus. This exposes the fetus to certain alcohol levels, which can be harmful and result in fetal poisoning. Research also indicates that pregnant women addicted to alcohol are more likely to give birth to children with developmental issues or even deformities. Although many believe that consuming a small amount won't hurt, it is best to avoid alcohol during pregnancy.
Furthermore, numerous studies have highlighted the harmful effects of coffee on pregnant women. Research indicates that caffeine in coffee can pass through the placenta and affect the baby's heart rate. Common sources of caffeine include coffee, tea, and soft drinks. Experts suggest that if a pregnant woman is addicted to caffeine, she can safely consume up to 200mg of caffeine daily. Additionally, pregnant women should avoid drinks like bubble tea, pineapple juice, aloe vera juice, unpasteurized milk, and carbonated beverages.

3. Avoid Saunas and Hot Baths
Recent studies show that frequent hot baths or steam baths can cause fetal neural defects because excessive heat can alter hormone levels and body temperature, which can directly affect the fetus. The ideal water temperature for a pregnant woman is around 36°C. Pregnant women should avoid taking long baths, bathing right after eating, or bathing too late, especially after 9 PM.

4. Avoid eating fish containing mercury
Elevated mercury levels in the mother's blood can increase the risk of miscarriage, premature birth, or congenital defects, such as blindness, deafness, kidney damage, and delayed brain development, as well as poor weight gain if the fetus is exposed to metals in the womb. Thus, mercury can damage the central nervous system of the fetus and impair cognitive abilities. Therefore, women need to be very careful when eating seafood. It is advisable to choose seafood with low mercury content and prepare it in a suitable manner.

5. Be cautious when taking supplements
Expecting mothers should be cautious when taking supplements, particularly during the first trimester of pregnancy. Just because a supplement is made from natural ingredients doesn't mean it is safe for pregnant women. Many supplements have not undergone thorough safety testing and may not live up to the claims made by manufacturers.
DHA and EPA are two omega-3 fatty acids that are crucial for a baby's brain development and eyesight. Their role in enhancing the cognitive development of young children is gaining significant attention among scientists. As a result, numerous studies have been conducted to explore the potential of DHA and EPA to boost children's intelligence, focusing on their effects during pregnancy and breastfeeding. Research consistently shows that mothers who supplement with DHA and EPA during pregnancy tend to have children with higher IQs, better reflexes, stronger focus, and improved problem-solving skills.
According to recommendations from leading health organizations worldwide, pregnant and breastfeeding women should aim for about 200mg of DHA per day. This recommendation accounts for the DHA obtained from food sources like fish, eggs, and butter, with the option to add 100-200mg of DHA per day through supplements depending on dietary intake. Therefore, it's important to exercise caution before taking any supplements. It is always best to consult with a healthcare provider before using any such products.

6. Tránh tự ý sử dụng thuốc chữa bệnh khi mang thai
Khi bạn mang thai không có nghĩa là bạn được “miễn trừ” khỏi mọi bệnh tật. Các vi khuẩn và vi trùng có mặt ở khắp mọi nơi và nó có thể xâm nhập vào cơ thể bạn bất cứ lúc nào. Thực tế nghiên cứu cho thấy, hệ miễn dịch ở phụ nữ có thai còn yếu hơn ở người bình thường. Vì vậy, bạn càng cần chú ý giữ gìn sức khỏe của mình hơn, tránh để bệnh tật trong thời kì mang thai.
Hãy lưu ý tập thói quen rửa tay thường xuyên. Tránh tiếp xúc trực tiếp với người đang bị bệnh, những người có triệu chứng hắt hơi hoặc ho, vì có thể bạn sẽ bị truyền vi-rút gây bệnh. Trong trường hợp bạn đang ở cùng người đang nôn mửa, bạn hãy nhịn thở một khoảng ngắn để ngăn vi khuẩn coc cơ hội theo đường hô hấp tiến vào cơ thể. Cúm rubella và thủy đậu là hai bệnh thường gặp và có khả năng gây ảnh hưởng lớn đến thai nhi nhiều nhất. Ở nước ta, nhiều phụ nữ trước khi dự đinh mang thai, họ thường tiêm phòng hai loại bệnh này. Và nếu không may bị bệnh trong thai kỳ, bạn hãy tham khảo ý kiến bác sĩ trước khi sử dụng bất kỳ một loại thuốc trị bệnh nào bạn nhé.

7. Tránh tập thể dục với cường độ lớn
In fact, exercising throughout pregnancy provides numerous health benefits for expecting mothers. To ensure a healthy pregnancy and a successful delivery, pregnant women should plan a suitable workout routine, engage in moderate intensity exercises, and avoid high-intensity workouts.
Moderate intensity exercise means moving the body enough to elevate the heart rate and cause sweating. While exercising, you should still be able to talk comfortably without feeling fatigued. Some examples of moderate-intensity aerobic activities that pregnant women can participate in include swimming, brisk walking, and cycling on flat terrain. Aim for about 30 minutes of exercise for 5 days a week, or break it up into smaller 10-minute sessions each day. For example, walking three times a day for 10 minutes each time.

8. Avoid overeating and excessive weight gain
While it’s true that caring for the unborn baby is extremely important, pregnant women should learn to eat in a balanced and moderate way to avoid excessive weight gain. The recommended weight gain during pregnancy is as follows: for women who are slightly underweight, a weight gain of 12-18kg is ideal. For those with a normal or average build, gaining 11-15kg is appropriate. For slightly overweight women, a gain of 6-11kg is sufficient. For the baby, a healthy birth weight should ideally range from 2.8kg to 3.2kg. Pregnant women should also stay active to maintain a dynamic pregnancy and facilitate an easier labor.
It is important for expectant mothers to understand that an excessively large baby can directly impact the mother’s health, causing fatigue, stretching of the cervix, difficulty breathing due to pressure on the diaphragm, and swelling in the legs due to pressure on pelvic veins. This is also a leading cause of gestational diabetes. Furthermore, delivering a large baby can lead to more physical strain on the mother, including soft tissue damage such as tears in the perineum, vagina, or cervix, and excessive blood loss. Therefore, pregnant women need to maintain a healthy diet throughout pregnancy to ensure the well-being of both mother and baby.

9. Avoid listening to loud music
If the fetus is exposed to music played at a high volume for an extended period of time, it can negatively affect the baby’s hearing abilities and cause them to be startled and stressed. Many mothers believe that the baby needs loud music to hear it, not realizing that the amniotic fluid serves as an excellent sound conductor. Playing music at a moderate volume is enough for the baby to enjoy the soothing melodies with the mother.
Unborn babies can be startled by loud noises, and the mother may feel this every time the baby kicks. Occasionally playing music a little louder will not harm the baby. However, frequent exposure to music over 70 decibels can have negative effects on both mother and child. It can lead to high blood pressure for the mother and slow down the baby's motor and learning skills.
For pregnant women who love to listen to music regularly, it’s best to always keep the volume below 65 decibels (dB). This is the safe threshold for both mother and baby to enjoy the music. If listening for long periods, such as more than an hour, it’s advisable to lower the volume to under 50 decibels.

10. Avoid excessive Vitamin A supplementation
Vitamin A is a crucial micronutrient for the health of both the mother and the fetus. Not only does it support the development of the eyes in terms of shape, function, and integrity, but it also plays a vital role in other systems, especially the development of specialized organs and bones of the fetus. Therefore, supplementing with Vitamin A during pregnancy is essential. A deficiency in Vitamin A in pregnant women is a leading cause of corneal damage in the fetus, which may lead to permanent blindness if left untreated. Many pregnant women in developing countries face Vitamin A deficiency.
On the other hand, excessive supplementation of Vitamin A during pregnancy can pose serious concerns. Overdosing on Vitamin A can lead to birth defects, particularly during the first 60 days after conception. Furthermore, routine supplementation of Vitamin A before birth is not recommended. Pregnant women are encouraged to meet their nutritional needs through a balanced and healthy diet.

11. Avoid stress
Stress during pregnancy can lead to health issues for the baby... Studies have shown that babies who experience stress in the womb are more likely to develop early infections and mental health disorders. Additionally, babies may face other problems such as eye, ear, digestive, respiratory, skin, musculoskeletal, circulatory issues, as well as reproductive disorders, allergies, and asthma.
Stress and anxiety in pregnant women can have severe consequences. Pregnant women may experience constipation, back pain, and insomnia, and their babies may be born prematurely or underweight. Therefore, it’s important to maintain a relaxed mindset during pregnancy, live a healthy lifestyle, and engage in activities such as joining mother support groups, listening to music, or watching favorite movies to stay calm and positive.

12. Avoid cigarette smoke
Passive smoking occurs when you inhale smoke from someone else's cigarette, cigar, or pipe. The smoke exhaled by smokers, which contains nicotine and approximately 4,000 harmful chemicals (many of which are carcinogenic), settles on surfaces and clothing. These toxins can persist for months. Pregnant women may be exposed to these toxins by coming into contact with furniture, carpets, curtains, walls, floors, or inadvertently inhaling toxic fumes in the air.
These harmful substances can react with other impurities in the body, forming dangerous compounds. The toxins enter the bloodstream of pregnant women and are passed on to the fetus. In fact, passive smoking can put pregnant women at risk for the same health conditions as active smokers, including lung cancer. Studies show that a pregnant woman who regularly inhales secondhand smoke is more likely to give birth to a baby with a low birth weight, which can negatively impact the child’s health.

