Sitting posture: the chair for pregnant women should not be too high or too short, and 40 cm is appropriate. When sitting, lean slightly to the front, and then move your hips to the back of the chair. Sit deep in the chair, with your back straight against the back of the chair, your thighs at right angles to your knees, and your thighs level, so that you won't suffer from low back pain.

Standing posture: pregnant women should avoid standing for a long time. Stand with your legs parallel, slightly apart, slightly less than shoulder width, and your feet straight. Do not bend inward or curl outward. Standing like this, your weight falls between your feet, and you are not easy to get tired. However, if you stand for a long time, you should stand with your feet in tandem, and change your position every few minutes to let your weight fall on your outstretched front legs, which can reduce fatigue.

Walking posture: pregnant women should walk with straight back, head up, hips closed, body balanced, walk steadily, and don't walk on tiptoe. Use handrails or railings whenever possible. Take your time. Some pregnant women will feel dizzy when they suddenly stand up, which is a manifestation of autonomic nervous instability. The way to get rid of dizziness or dizziness is to squat down immediately, or grab something, or lie down and rest for a while, and it will soon be all right. The preventive measure is not to stand up suddenly and quickly, and other movements should not be too fast, but to proceed slowly and gently. Especially when you go to the toilet at night, don't suddenly sit up or stand on the ground to avoid accidents. If dizziness occurs repeatedly, you should go to the hospital for examination and be alert to anemia, hypotension and hypertension.