Scroll way down to the bottom of the Hot One Hundred top breeders and youll eventually find the United States, hovering just at replacement rate with 2.07 births per woman.
Most of the time, no apparent cause for night leg cramps can be identified. In general, night leg cramps are likely to be related to muscle fatigue and nerve problems. The risk of having night leg cramps increases with age. Pregnant women also have a higher likelihood of having night leg cramps. Several conditions, such as kidney failure and diabetic nerve damage, are known to cause night leg cramps. But if you have one of these, you're most likely aware of it and have symptoms other than night leg cramps.
Although the risk of getting night leg cramps increases with. age, it's often difficult to pinpoint the cause. In fact, these cramps often occur for no known reason. Dehydration, prolonged sitting, or not getting enough. potassium, calcium or magnesium in your diet can be associated. with leg cramps. So can certain medications - including. diuretics, beta blockers and other blood pressure drugs.