All Doctor of Philosophy (DPhil) students must write an acceptable research proposal. This has a clear and explicit purpose: it makes certain that you have a worthwhile research project - you have a good grasp of the relevant literature and the major issues, and that your methodology is sound;
If the above tonic helps relieve your leg cramps, try to boost your potassium levels by eating more of these potassium-rich foods: apples, bananas, dried fruits, avocado, mushrooms, yogurt, kefir, spinach, tomatoes, mushrooms, baked potatoes and cantaloupe.
1 It is found in whole grains, spinach and other leafy green vegetables. A deficiency in magnesium can cause painful leg cramps, migraines, and also insomnia.  Potassium: Potassium is another important mineral, the lack of which can cause fatigue, muscle tightness, and cramping.