An accurate test for how long does nicotine stay in your system can be performed via blood test. If a laboratory is testing for nicotine, it should be performed within 3 days of smoking. It is better for a laboratory to test for cotinine as it remains in the blood stream for about 10 days after smoking.
The pH in the human digestive tract varies greatly (see Human Digestive Tract pH Range Chart on the left side). The pH of saliva is usually between 6.5 - 7.5. After we chew and swallow food it then enters the fundic or upper portion of the stomach which has a pH between 4.0 - 6.5.he pH of any solution is the measure of its hydrogen-ion concentration. The higher the pH reading, the more alkaline and oxygen rich the fluid is. The lower the pH reading, the more acidic and oxygen deprived the fluid is. The pH range is from 0 to 14, with 7.0 being neutral.
Learn your ideal pH and how to maintain it. The body has numerous mechanisms in place to maintain pH within the range of 7.35 to 7.45 necessary to prevent serious health issues or death. However, the ideal pH of the human body is 7.365. The closer body pH is to the ideal value, the better you feel and the easier it is to maintain long-term health. Health Issues Arise When Ideal pH Is not Maintained. When pH drops below the ideal, the body experiences a more acidic environment. This leads to problems such as inflammation and narrowing of the arteries and corrosion of body tissue. Long-term acidic pH may lead to cancer, heart disease, or diabetes.