Please choose the correct ending to complete the given sentence: Health: [header] How to diagnose motor neuron diseases [title] Notice a loss of muscle control in your legs. [step] The early symptoms of mnds involve weakening muscles and diminished muscle control. These symptoms typically begin in 1 of 3 areas: the legs, the hands and arms, or the mouth.

Ending1: [title] Look for unusual sweating; constant sweating is associated with recurring muscle spasms. [step] A person may experience chest tightness and make an unusual sound. Ending2: Notice if your leg or upper body feels weak to the touch. Joint pain and tenderness may appear to be caused by ligaments, tendons or nerves that have been broken or crushed. Ending3: [substeps] The body's internal organs do the most damage. Muscle and bones are damaged and the arteries and joints cannot repair properly. Ending4: Tripping, falling, or having trouble walking are often early signs of progressive mnds. Symptoms of a developing mnd also include having trouble putting weight on your legs and ankles.

Answer format: ending1/ending2/ending3/ending4