3. There are many different types and many causes of nephritis. 22. Total deprivation of the supply of oxygen to the body causes death within minutes. They make up about 12 per cent of the weight of the human body.
There is overwhelming evidence that lung cancer is caused by cigarette smoking. 2. Bronchitis and emphysema. Prolonged cigarette smoking commonly leads to progressive cough and breathlessness, ultimately leading to respiratory incapacity.