Naturalist definition, a person who studies or is an expert in natural history, especially a zoologist or botanist. See more.
Nighttime leg cramps are a sudden intense pain in the thigh or calf. A cramp is a tight muscle that won't relax. They can be caused by mineral deficiency.
Because there are several conditions that can cause leg pain at night: 1  fibromyalgia. 2  sciatica. 3  arthritis. night leg cramps.  varicose 1  veins. Use of statins for lowering cholesterol.  lower extremity arterial disease (atherosclerosis).