For women who are normally healthy, they can drink a small amount of light salt water early in the morning after waking up. However, light salt water is more suitable for drinking after exercise or heavy sweating to replenish the body’s lost water and sodium. Drinking water is good for human health, such as drinking warm water in the early morning on an empty stomach to help detoxify the kidneys and liver and prevent constipation. Sleeping all night without drinking water, but breathing, sweating, urination is still in progress, need to consume a lot of water loss, drinking light saline may aggravate hypertonic dehydration. Especially for patients with heart disease and hypertension, it is not advisable to drink light saline in the morning, so as not to increase blood pressure and have a bad outcome. In addition, for the majority of normal people, you can drink light salt water in the early morning, can effectively accelerate the peristalsis of the gastrointestinal tract, which is conducive to the discharge of toxins and discharge of body feces. At the same time, in summer, after strenuous physical activity and heavy physical labor, due to a lot of sweating, can be appropriate to drink but salt water, which is conducive to replenishing the body’s lost salt, but also to eliminate fatigue. In short, women need to ensure the right amount of water intake every day, but after 8:00 p.m. is not recommended to drink a lot of water, so as not to cause edema the next day.