Low potassium levels can cause leg cramps. Apple cider vinegar is high in potassium and this tonic should help quickly if your leg cramps are caused by low potassium: Mix 2 teaspoons apple cider vinegar, 1 teaspoon honey in a glass of warm water and drink.
The hammerhead ribozyme is a RNA molecule motif that catalyzes reversible cleavage and joining reactions at a specific site within an RNA molecule.
Hammerhead sharks are any of eight species of sharks in the family Sphyrnidae, in the class Chondrichthyes, which also includes rays and chimaeras. The flat, broadly T-shaped head is on rare occasions called a cephalofoil. It looks like a double-headed hammer or ax, with one eye and one nostril at each end.