1. Weight remains stable Except for people who are too thin and too fat, a constant weight is an important sign of health. Consult your doctor if there is a significant change in weight, either an increase or a decrease. 2.Wound repair quickly If small wounds, minor burns take a long time to heal, or minor stresses cause unexplainable skin bruising, it’s time to see a doctor. If the wound is easily well, it means that the ability of blood clotting, the ability of white blood cells to sterilize and the health of blood vessels are good. 3, hair and nails without lesions The skin system, including hair and nails, is an “indicator” of vitamin deficiency. Insufficient hardness, easy to bend the nails, a large part of the hair loss should go to the hospital to identify the cause. Curly hair and split ends are usually not related to health. 4. Normal menstrual cycle Normal menstrual symptoms are a sign of a healthy reproductive system. Painful, irregular, persistent bleeding, excessive bleeding should consult a doctor. 5. Sleep very well Many people do not get enough sleep and occasionally experience insomnia, which is normal. If there are no symptoms of night sweats during a deep sleep, you will not be woken up by the desire to go to the toilet, and you feel very relaxed after waking up, it means that the quality of sleep is quite good. 6, clearer urine If you have to urinate several times a day, and the urine is light yellow, rather than dark, it means that the body is well hydrated and the kidneys are healthy; completely colorless urine indicates that the body has too much water, which causes the body to lose important salts and electrolytes.