With advances in medical care more and more patients are being treated in critical care units to save their lives. Often, the patient is not conscious and is not in a position to willingly agree to this care. A living will, or a “health care declaration”, is a document in which one describes the kind of health care he want to receive if he is incapacitated and cannot speak for himself. It is often paired with a power of attorney for health care, in which he names an agent to make health care decisions on his behalf. The main intention of a living will is to respect the patient’s wishes and offer only that treatment which the patient wants, what is compatible with his/her idea of dignity of life, and not subject him/her to unwanted sufferings and futile interventions merely to leave him/her alive but in an undignified vegetative state. Besides this, a living will leave clear guidelines for the patient’s caregivers and family members and spare them from difficult decision-making under societal pressure, and in a developing country like ours, save wastage of precious healthcare resources. Clear instructions about procedures like CPR, resuscitation via electric shock, ventilation, tube feeding, and dialysis and starting, maintaining, and ending life support systems are there in a living will, and both caregivers and treating doctors should respect it. Instructions for organ donation and body donation can also be expressed in a living will.