Time Required for Exams. Doctoral students periodically take a series of exams until they complete their Ph.D. program. During the first year of Ph.D. studies, candidates typically take a comprehensive exam to gauge their knowledge in a chosen field of study.
Leg cramps are common. The cause is not known in most cases. However, some medications and diseases sometimes cause leg cramps. Regular calf stretching exercises may prevent leg cramps. Quinine tablets may be advised as a last resort if you have cramps regularly. A leg cramp is a pain that comes from a leg muscle. It is due to a muscle spasm, which is when a muscle contracts too hard. It usually occurs in a calf muscle, below and behind a knee. The small muscles of the feet are sometimes affected.
7) Trapped Nerve. Compression of the nerves of the lower leg can cause pain in calf, pins and needles and numbness in the calf region. The compression may be coming from the lower back where the nerve originates from, or at any point along the nerve.Any symptoms of nerve compression should be checked out by your doctor.alf muscle pain can be due to injury, underlying medical condition or a problem in the nerves or arteries in the lower leg.