A new U. S. study has found that the rhythm of the human body's physiological response is consistent with the day and night, and once this rhythm is disrupted, the immune system's resistance to disease will decrease. If the following are true, the above view can be weakened most:. ['Jets to different time zones are prone to headaches and nausea.', 'Staying up late can cause excessive gastric acid secretion and induce gastric ulcer.', 'Drinking plenty of water immediately after long-distance running can easily destroy the metabolic balance in the body and cause disease.', 'Patients with birth defects of the immune system, even with a normal diet, have a high probability.']